William Thomas

Actor 1975–2026 (51 year career)

6.2 avg rating

Biography

William Thomas is a Welsh actor based in Cardiff.

Known For

Film

Mr. Nice

Dennis Marks

Film

The Baker

Alun Thomas

Film

Twin Town

Bryn Cartwright

Film

Longitude

Arthur Mason

Film

The Miracle Maker

Magi (voice)

Film

Doctor Who: Remembrance of the Daleks

Martin

Film

Just Jim

Sammy

Film

Lost Boys and Fairies

Emrys

Filmography

Acting (45)

Movies (30)

La Cha Cha

as Pat

Concrete Plans

as Dave

Bittersweet Symphony

as Dr. Kirkby

Wild Honey Pie!

as David Walker

Just Jim

as Sammy

Which Way Is Ireland?

2015

as Taid

Y Syrcas

Mr. Nice

as Dennis Marks

Freebird

as Welsh Farmer

The Baker

as Alun Thomas

January 2nd

as Tom

Otherworld

as Hefeydd (voice)

The Miracle Maker

as Magi (voice)

Longitude

as Arthur Mason

House!

as Clipboard

Solomon & Gaenor

as Idris Rees

Catfish in Black Bean Sauce

as Douglas

Twin Town

as Bryn Cartwright

Darklands

as Detective Jarvis

Dafydd

as David Davies

Sticky Wickets

as Cyril

Doctor Who: Remembrance of the Daleks

1988

as Martin

9.4

Reasonable Force

1988

as The Sportsman

The Extremist

1984

as Detective Inspector Jones

The Life and Times of David Lloyd George

1981

as William George

Changing Gear

1979

as John Lloyd / Keith Lloyd

Casey's Shadow

1978

as Jockey

6.3

Dylan: The Life and Death of a Poet

as Idris

Antony and Cleopatra

as Soldier

Buddha Boy

as Grandad

Television (15)

Under Salt Marsh

2026

as Owen Ellis

6.6

The One That Got Away

2024

as Griff Lloyd

6.3

Lost Boys and Fairies

as Emrys

Mammoth

as Barry

Tree on a Hill

as John Frederick Watkins

6.5

The Pembrokeshire Murders

as DCI George Jones

Gangs of London

as Frank

Requiem

as Stan

Gavin & Stacey

as Father Chris

Torchwood

as Geraint Cooper

Doctor Who

as Mr Cleaver

Longitude

as Arthur Mason

Midsomer Murders

as Bryn Williams

The Magnificent Evans

as Probert

Madame Bovary

as Albert