Voiceover artist profile

Gethin Alderman

Gethin Alderman is an actor and voice artist whose career spans Shakespeare at Shakespeare's Globe, Doctor Who, solo clowning and character comedy. Originally from Monmouthshire, his natural blend of resonant RP and a Welsh lilt makes him a perfect fit for warm, grounded commercial reads, while his love of character work sees him creating unforgettable voices for games, animation and beyond.
Male
30-40s
English ★ French ★ Spanish ★ Welsh

Accents

RP ★ Welsh

Styles

Animation/Character ★ Approachable ★ Assured ★ Characterful ★ Conversational ★ Deep ★ Diverse ★ Friendly ★ Gaming ★ Kind ★ Powerful ★ Sincere ★ Versatile

Artist Bio

From Shakespeare’s Globe to Doctor Who, solo clown shows to performance capture, Gethin has built a career on transformation. An experienced actor and voice artist from Monmouthshire, he’s happiest when stepping into someone else’s shoes or, more often than not, someone else’s voice.

His natural sound is a distinctive blend of resonant RP with a subtle Welsh lilt, making him a trusted choice for conversational commercial reads and corporate narration. But it’s character work where Gethin really comes alive. Whether voicing bold heroes, eccentric villains or medieval French knights for video games, he relishes the challenge of building characters from the ground up. His background in comedy has also earned praise for his impeccable comic timing, with The Times commending “his virtuosic and often amusing versatility.”

Beyond the booth, Gethin is an experienced creature performer with specialist training in Motion Capture and Performance Capture, bringing physicality and performance together both on set and in the studio. His voice has featured across commercials, educational content, audiobooks, audio dramas and games – proving there’s very little he won’t turn his hand (or voice) to.

When he’s not acting, you’ll most likely find him at home with his young family, road-testing character voices for the latest bedtime story. They’re easily his toughest audience, but also his favourite.

Playing Accents

RP, South Wales (General, Newport, Cardiff), West Country, London, Australian, French, Norwegian, Scottish (Edinburgh)
Through School and University, I played percussion in a variety of musical groups and ensembles and still own a Xylophone. Ever the Welsh cliché, I also sing, when work allows, with London Welsh Male Voice Choir.
Gethin Alderman

Credits

The 355
The Boys in the Boat
Ammonite
A Beautiful Butterfly

The War Between the Land and the Sea
Doctor Who
The Great
Wolf
Somewhere Boy
Einstein and the Bomb
Andor
Somewhere Boy
The Outlaws
Eastenders
Casualty
Doctors

Voiceover

Royal London – Profit Share (TV and Radio)
St Joseph’s Hospital
The Services
Functioning Vampire Podcast
Mordhau
Newsrevue Podcast

Othello (Theatre Royal Haymarket)
Romeo and Juliet (Shakespeare’s Globe)
Starcrossed (Wilton’s Music Hall)
Henry V (Donmar Warehouse)
Mold Riots (Theatr Clwyd)
Incident at Vichy (Finborough Theatre)
Who is Claude Cahun? (Southwark Playhouse)
Seagulls (Volcano Theatre, Edinburgh Fringe, Scenofest Taiwan)
The Princess and The Pea / Y Dywysoges a’r Bysen Fechan Fach (Sherman Theatre/Theatr Iolo)

Immaculate voices. Immaculate vibes.

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