Founded and led by industry professionals with real-world experience training
the next generation
For more than three decades, Mark Jermin has been one of the UK’s most passionate and influential champions of young talent, dedicating his life to nurturing performers, building confidence, and creating genuine opportunities within the arts industry. As the founder of the Mark Jermin Stage School and Mark Jermin Management, he has helped shape the careers of countless actors, singers, and performers who have gone on to achieve success across television, film, theatre, and the West End.
Mark’s journey in the performing arts began at an early age. A gifted performer, he performed throughout the UK and Germany as a solo boy soprano before developing his acting and theatrical skills through youth theatre and stage productions in Swansea. Even as a teenager, Mark demonstrated an extraordinary instinct for teaching and mentoring others, founding a small drama group at the age of just 15. What began in a local community hall would later grow into one of the UK’s leading performing arts institutions.
Driven by a belief that every young person deserves the chance to shine, Mark built the Mark Jermin Stage School on the foundations of excellence, inclusivity, professionalism, and opportunity. Under his leadership, the school has expanded from its original Swansea base into a respected and thriving creative organisation with branches across Wales, England, and online platforms that reach students worldwide.
Today, the Mark Jermin Stage School is recognised as one of the UK’s most successful specialist performing arts schools, renowned for its exceptional training, industry-led coaching, and professional opportunities. Students regularly work alongside leading casting directors, agents, producers, and creatives, while many graduates continue on to prestigious drama schools including RADA, LAMDA, Mountview, ArtsEd, Laine Theatre Arts, Guildford School of Acting, and the Royal Welsh College of Music & Drama.
Mark’s impact on the industry can be seen through the remarkable success of his students and alumni. Performers who began their journeys under his guidance have appeared in major productions for Netflix, BBC, Disney, ITV, Amazon Prime, Sky, and in award-winning West End productions. His unwavering commitment to discovering and developing talent has earned him widespread respect throughout the entertainment industry.
Alongside the stage school, Mark founded Mark Jermin Management, a highly respected talent agency representing both children and adults across film, television, theatre, commercials, voice-over, and presenting work. The agency has built an outstanding reputation for professionalism, integrity, and personal support, connecting performers with some of the entertainment industry’s biggest opportunities both in the UK and internationally.
As a creative practitioner himself, Mark has also received critical acclaim for his writing, directing, and performance work. His one-man play Aberfan was widely praised, later being reimagined as Children of Mine for Mark Jermin Stage School students. The production achieved national recognition at the Edinburgh Fringe Festival, winning the award for Outstanding Ensemble in 2013.
What truly defines Mark Jermin is not simply his success, but his enduring passion for the arts and the transformative power of performance. Throughout his 30-year career, he has consistently invested in young people, championed creativity, and created safe, inspiring spaces where confidence can flourish. His work has changed lives — not only by helping students become performers, but by helping them believe in themselves.
Mark continues to inspire the next generation of artists through his vision, leadership, and relentless dedication to the performing arts. His legacy is evident not only in the achievements of his students, but in the thriving artistic community he has built — one rooted in opportunity, ambition, creativity, and heart.
Sources referenced include official biographies and company information from Mark Jermin Stage School and Mark Jermin Management.
Founder & Director
Nia Jermin is a driving force behind the continued success and heart of the Mark Jermin organisation, bringing together exceptional industry knowledge, professional performance experience, and an extraordinary passion for nurturing young talent. As Managing Director of Mark Jermin Stage School and Mark Jermin Management, Nia has become widely respected not only for her professionalism and leadership, but for the warmth, care, encouragement, and genuine belief she brings to every student and performer she works with.
A talented performer in her own right, Nia has enjoyed a successful professional career across theatre, television, and live performance, giving her invaluable first-hand understanding of the entertainment industry and the demands faced by performers. Her professional credits, performance training, and years of practical experience have shaped the compassionate yet ambitious approach she brings to teaching and artist development.
What makes Nia truly exceptional is her ability to combine industry excellence with heartfelt mentorship. She is deeply committed to helping young performers grow not only as artists, but as confident, resilient individuals. Known for her patience, positivity, and infectious enthusiasm, Nia creates an environment where students feel supported, inspired, and empowered to reach their full potential.
Her love for teaching is evident in every aspect of her work. Whether coaching audition technique, developing performance skills, mentoring students through professional opportunities, or supporting families through the challenges of the industry, Nia approaches each individual with kindness, understanding, and unwavering dedication. She has an incredible ability to recognise potential in others and to help performers discover strengths they may not yet see in themselves.
As Managing Director, Nia plays a pivotal role in overseeing the growth and development of both the stage school and management agency. Her leadership has helped strengthen the organisation’s reputation as one of the UK’s leading centres for professional training and representation. Through her guidance, countless performers have secured opportunities in television, film, theatre, commercials, voice-over, and West End productions.
Nia is also widely admired for the supportive culture she has helped cultivate throughout the organisation. Families and students alike often speak of the genuine care she gives to every performer, treating each student as an individual and ensuring that wellbeing, confidence, and creativity remain at the centre of the training experience.
Her passion for the arts is deeply personal. Nia believes wholeheartedly in the transformative power of performance — in its ability to build confidence, foster self-expression, and change lives. That passion continues to inspire the next generation of performers every single day.
Through her creativity, leadership, compassion, and unwavering commitment to young people, Nia Jermin has become an integral and much-loved figure within the performing arts industry. Her contribution to Mark Jermin Stage School and Mark Jermin Management goes far beyond administration or leadership — she is a mentor, advocate, teacher, and inspiration to countless performers and families.
Founder & Director
Professional tutors with first-hand industry coaching experience
Welsh Speaker and incredible talent Aled began his training at...
With over 10 years of professional experience in television, having...
Billy a working class, neurodiverse actor, theatre maker and facilitator....
Before even graduating from Miskin Theatre Clair had bagged herself...
Dan graduated from East 15 Acting School in 2017, and...
Dorothea trained at the Bristol Old Vic Theatre School. She...
Fiona is an actor and Senior Coach at the Mark...
Former MJ Alumni, Gabrielle is an actress starting her training...
Gleanne graduated from The Urdang Academy in 2016 with a...
Holly is Bristol Old Vic Theatre acting graduate and fluent...
Born in Carmarthen, Laura studied at the Royal Academy of Dramatic Art (RADA)...
Robyn has completed extensive training on the MFA Voice studies...
Jacob is a Director / Theatre Maker who creates bold,...
If you want to learn how to be authentic in...
Jonny Weldon is an actor, writer, comedian, and content creator who...
Roșie Sheehy îs an Olivier award nominated actress. Having trained...
Ryan holds a wealth of knowledge and has extensive credits...
Actor and Tutor Tom trained at the Royal Welsh College...
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Welsh Speaker and incredible talent Aled began his training at Mark Jermin prior to Mountview London. Aled has starred in Gangs of London;(AMC / Sky Drama), The Pact, and the BAFTA Award winning In My Skin (both BBC) Cobra 2 (Sky) and Life and Death in the Warehouse (BBC3) as well as an array of inspiring stage credits.
With over 10 years of professional experience in television, having started in the industry at the age of 8. Trained full-time for 6 years at the Sylvia Young Theatre School, developed a versatile skill set in both dramatic and comedic roles. With notable credits including BBC3's Comedy Horror Wreck, The Spanish Princess (Amazon), Ted Lasso (Apple TV), Game of Thrones (HBO), and BBC's EastEnders.
Billy a working class, neurodiverse actor, theatre maker and facilitator. He is originally from London and raised in South Wales. Billy trained at The Royal Central School of Speech and Drama. Billy has an extensive list of theatre and Voiceover credits and has most recently completed an international tour of The Gruffalo. Billy looks forward to continuing his coaching sessions at Mark Jermin.
Before even graduating from Miskin Theatre Clair had bagged herself a role in the British Soap Opera ‘Eastenders? Currently playing Bernadette Taylor, Clair has had some hard-hitting storylines including a teenage pregnancy and the death of two of her siblings. She has also appeared in Tell Me Everything (2022) and Bloods (2021).
Dan graduated from East 15 Acting School in 2017, and has since worked extensively in TV & Film, undertaking projects for the BBC, Netflix, HBO, Channel 4, ITV & Apple TV.
He also works as a Director and Teacher, having taught previously at East 15 Acting School and Performers College. He has also sat on the audition panel at both of these institutions.
Alongside his acting and teaching, Dan has been writing Showreel Scenes for actors for the last five years, and has written over 1000 scenes to date.
Dorothea trained at the Bristol Old Vic Theatre School. She has worked extensively in theatre, TV, film and radio. In 2023 she won an Off West End award for Possession at the Arcola Theatre and has been nominated for Best Actress 4 times. This year she has been in Olivier Nominated What We Talk About When We Talk About Anne Frank, ITV's Ellis, and the recent film adaptation of Prima Facie with Cynthia Erivo.
Recent notable credits include Nachtland at the Young Vic, Leopoldstadt at the Wyndhams Theatre, Twelfth Night at the Orange Tree. Other Theatre includes:
Shaw Shorts, While The Sun Shines, The Lottery of Love and The Philanderer (Orange Tree), Holy Sh!t (Kiln Theatre), The Winslow Boy (Chichester Festival Theatre), Merchant of Venice (Shakespeare’s Globe/Lincoln Centre, New York), Pericles (Shakespeare’s Globe), Creditors and Miss Julie (Jermyn Street Theatre), Rosenbaum’s Rescue (Park Theatre), Richard III and Uncle Vanya (West Yorkshire Playhouse), The Misanthrope (Bristol Old Vic), Hay Fever (Royal Exchange Theatre), She Stoops To Conquer (Birmingham Repertory Theatre), Restoration (Headlong), Much Ado About Nothing, As You Like It, Arcadia, Two Gentlemen of Verona, Richard III, The Cherry Orchard, King Lear and The Comedy of Errors (Shakespeare at the Tobacco Factory Theatre), This was a Man (Finborough Theatre), The Fitzrovia Radio Hour (St James Theatre), The Spire (Salisbury Playhouse), Present Laughter (UK tour)
Television includes: Juice (BBC), Eastenders, Ellis, The Chelsea Detective, Dodger (BBC), Doc Martin, Before We Die, Around the World in 80 Days, Holby City, Plastic People.
Film includes: Prima Facie,The Honourable Rebel, The Payback, The Orchard and Ladies.
Fiona is an actor and Senior Coach at the Mark Jermin, where she has been a key part of the team for over three years. With more than a decade of teaching experience, she coaches Small Group Acting and Adult Virtual sessions.
Her approach focuses on helping actors think and feel like their characters, connecting preparation and imagination with genuine emotional truth. Fiona believes that “bold choices" don't mean bigger performances, but rather the freedom to make choices that are uniquely your own.
Actors Fiona has coached appear in cult favourites like Harry Potter and Wednesday, alongside acclaimed British dramas including Riot Women, Casualty, and Waterloo Road.
As an actor, Fiona's credits include Casualty (BBC), One Love: Bob Marley (Paramount), Anfamol (BBC), and Brides (BFI/Sundance), directed by acclaimed theatre-maker Nadia Fall.
Alongside screen work, Fiona supports actors preparing for LAMDA and Trinity exams - where her students have achieved a 100% distinction success rate - as well as drama school entries and audition coaching for all levels.
Former MJ Alumni, Gabrielle is an actress starting her training and career at Mark Jermin when she was six years old! . She is known for Black Doves (Netflix) Three Women, and her role as Bethan Gwyndaf in the BBC series In My Skin. For this performance, she won a BAFTA Cymru for Best Actress. Gabrielle has a short break in filming schedules and is keen to offer her guidance, support and expertise to other actors ... her unique approach is fresh and inspirational
Gleanne graduated from The Urdang Academy in 2016 with a First Class BA (Hons) in Professional Dance and Musical Theatre. Gleanne has had over 8 years working professionally in the industry both on stage and screen. Gleanne features in the BAFTA and Oscar nominated feature film Living with scenes opposite Bill Nighy and Tom Burke - it is now out in UK cinemas and on Amazon Prime. In 2022, she played Peggy, the leading female in Playboy of the West Indies at The Birmingham Rep Theatre. Other Theatre Credits include: Pippin (Theatre Royal Drury Lane); The Big Life (Stratford East); The Blonde Bombshells (UK Tour); She Loves Me (Sheffield Crucible); Curtains (West End/UK Tour); The Producers (Royal Exchange Theatre); Spamalot (UK Tour).
Holly is Bristol Old Vic Theatre acting graduate and fluent Welsh speaker. She has performed on the West End in Touching the Void and has recently been in Buffering on ITV. Holly has also written her own play which she performed in and is now being developed for TV!
Born in Carmarthen, Laura studied at the Royal Academy of Dramatic Art (RADA) in London, graduating in 2000. Laura rose to fame for her portrayal of single mother and former drug addict Sheena Williams in Series 7 of the ITV drama Bad Girls (2005) and Chastity Green in the BAFTA-nominated BBC mini-series The Sins (2000).
On stage, Laura has appeared in Revelations at London's Hampstead Theatre, Mary Yellan in Jamaica Inn at the Salisbury Playhouse Celestina, which started at the Birmingham Repertory Theatre before moving to the King's Theatre as part of the Edinburgh International Festival, and then returned to Birmingham. In February 2006, she performed as Rosine in the Bristol Old Vic production of The Barber of Seville. Later that year, she returned to the Old Vic as Milady de Winter in Ken Ludwig's adaptation of The Three Musketeers.
Also in 2006, Laura originated the role of Wing Governor Helen Stewart in Bad Girls: The Musical at West Yorkshire Playhouse in Leeds and West End production of the show.
At Shakespeare's Globe Theatre in London, Laura has performed as Helena in A Midsummer Night's Dream (2008), Timandra in Timon of Athens (2008), Celia in As You Like It (2009), and Lady Macbeth in Macbeth (2010).
In 2011, Laura began performances in the West End production of The 39 Steps, as Annabella Schmidt, Margaret and Pamela. In 2014, she played the role of Kay Summersby in the play Pressure at the Royal Lyceum Theatre in Edinburgh[3] and the Chichester Festival.[4]She later joined the play's touring revival in 2018.[5][6]
On television, Rogers appeared in the 2010 Doctor Who Christmas special "A Christmas Carol", alongside Michael Gambon and Katherine Jenkins. She has also made guest appearances in various shows, including Rockface (2002), Doctors (2007, 2010, and 2019), Missing (2010), Dark Matters: Twisted But True (2012), New Tricks (2014), Holby City (2016), and EastEnders (2017). Rogers has also voiced characters in the video games The Witcher 2: Assassins of Kings (2011) and The Witcher 3: Wild Hunt (2015).
In 2023, she appeared as Clementine Churchill in When Winston Went to War with the Wireless by Jack Thorne, premiering at the Donmar Warehouse on 13 June.
Robyn has completed extensive training on the MFA Voice studies course at BOVTS. She is a qualified Speech and Language Therapist and has worked across London for the past 10 years, specialising with children, and young people in inclusive education. She has experience in one-to-one and group work and is an incredibly popular choice for Voice and Accent work from Mark Jermin Actors and Clients.
Robyn also teaches Voice at some of London's most prestigious drama schools at Mountview and ArtsEd.
Jacob is a Director / Theatre Maker who creates bold, visually dynamic and ensemble led work that places interpersonal connections at its core. He uses his physical theatre background to craft and stage stories in an expressive and vibrant style. After training at East 15 on the Acting and Physical Theatre course, Jacob co founded Dauntless Evolution, a theatre company of which he is the Artistic Director. He has used his extensive devising and movement background to work as a Movement Director / Performer and is well experienced at facilitating training in these areas. He has also completed an MA in Drama Directing at Bristol Old Vic Theatre School marking a shift in his practice. Alongside directing Jacob is an experienced facilitator and teacher and is a visiting lecturer at drama schools across the country most recently including East 15 and Identity School of Acting.
If you want to learn how to be authentic in your work, build practical techniques and skills that you can use in auditions/ on set/ on stage, and understand the industry better, Jonathan is your coach.
Jonathan is an actor, coach, and director. He has worked in the US, UK, Australia, and New Zealand in all disciplines, he has a real passion for teaching and is a popular coach amongst Mark Jermin students and clients. Notable credits include Power Rangers, Coronation Street, and Panthers (TIFF Nominated for Best Series).
Acting takes many forms in today's world, and actors need to be physically and mentally immersed in their roles. Jonathan will build your confidence, refine the way you think about acting, and ultimately make it feel natural to act authentically - the way it should be.
You may bring your own material to sessions, or Jonathan can provide excellent scripts for you to work with.
Jonny Weldon is an actor, writer, comedian, and content creator who has performed on stage and screen from a young age. He is known for Ian in ONE DAY (Netflix) and is
He can also be seen in Sneakerhead, Stath Lets Flats, Breeders, House of the Dragon and The Outlaws. He also played the role of Casper in 101 Dalmatians at Regent’s Park Open Air Theatre amongst of other professional stage credits through his varied career.
You might also be familiar with his work online, where he’s been posting comedy sketch videos about life as an actor that have seen him amass hundreds of thousands of views.
Roșie Sheehy îs an Olivier award nominated actress. Having trained at RADA, Rosie has many exceptional credits under her belt, and continues to pioneer with complex roles she chooses, from Lady Anne in Richard III to Carol in Oleanna and the bullied wife and murderer (inspired by Ruth Snyder, who was executed for killing her husband) in Machinal of which she received the 2025 Olivier nomination for “I like playing people who aren’t likeable. I’m not frightened of being ugly, in character or the way I look. I’m always interested in that. And the bigger the obstacle the better.” he has appeared in the West End in Oleanna (also at Bath Theatre Royal)
Other productions include All’s Well That Ends Well, King John and Richard III for the RSC; Anna X at the Vaults; The Wolves at Theatre Royal Stratford East; The Whale at Ustinov Studios; Escape the Scaffold at Theatre503; Strife at Chichester; Bird at the Royal Exchange, Manchester; The Hairy Ape at the Old Vic; Chicken for Paines Plough; The Second Maiden’s Tragedy at the Sam Wanamaker Festival; Minetti at Edinburgh International Festival; Uncle Vanya at Theatr Clywd and Sheffield Theatres.
On screen, her credits include Steel Town Murders, Wild Bill, Call the Midwife, Chernobyl and DCI Banks. For film, credits include Pillion, A Violent Man and the short films Everybody Dies Sometimes and Leash.
Radio credits include Nuremberg and Base Lines
Rosie is keen to continue to do more screen work and is “obsessed” with film director Andrea Arnold, while her stage heroes are Helen McCrory, Janet McTeer and Sally Hawkins. The roles she would like to take on include Lady Macbeth, the Duchess of Malfi, Hedda Gabler and Eugene O’Neill’s Anna Christie. All women with immense strength of spirit? “Yeah,” she says. “They’re all high stakes.”
Rosie joined the Mark Jermin Teaching team this Summer fresh from a run at the Old Vic in Conor McPherson's The Brightening Air alongside Chris O Dowd.
Ryan holds a wealth of knowledge and has extensive credits in amazing productions in the theatre and filming all over the world. Recent regular TV roles include, The Crown (2016), Coronation Street (1960) and Almost Never (2019). Ryan has also worked on shows such as Heartbeat, Emmerdale, Holby City, Casualty, Knightfall, Doctors, Grantchester and Jamie Johnson FC. We are so excited to have Ryan on our teaching team here at Mark Jermin.
Actor and Tutor Tom trained at the Royal Welsh College of Music and Drama and has consistently worked having started his Acting journey at Mark Jermin when he was a child! Most recently Tom filmed a British Feature Film starring Aaron Taylor-Johnson & Theo James. Other screen credits include Eastenders (BBC) and Martin in Chariot (currently streaming on Amazon Prime) Theatre credits include working with repubale comanpies such as Les Enfants Terrible, The Other Room and Illyria. Tom is also member of Pinch Punch Improv, who's hit show Locomotive for Murder is currently touring the UK.
