Jack MacGowran

The Exorcist(1973)

Burke Dennings

The Shadow of a Gunman(1972)

Seumas Shields

Start the Revolution Without Me(1970)

Jacques

The Yin and the Yang of Mr. Go(1970)

Leo Zimmerman

King Lear(1970)

Fool

A Day at the Beach(1970)

Collector

Wonderwall(1969)

Prof. Oscar Collins

Age of Consent(1969)

Nat Kelly

There's a Hole in Your Dustbin, Delilah(1968)

'Cheese and Egg' C.E. Petty

The Fearless Vampire Killers(1967)

Professor Abronsius

The Inn Way Out(1967)

Irish Poet

How I Won the War(1967)

Juniper

Cul-de-sac(1966)

Albie

Silent Song(1966)

Brother Michael

Eh, Joe?(1966)

Joe

The Stable Door(1966)

Doctor Zhivago(1965)

Petya

Beginning to End(1965)

Man

Young Cassidy(1965)

Archie

Lord Jim(1965)

Robinson

Tom Jones(1963)

Partridge

The Ceremony(1963)

O'Brian

Captain Clegg(1962)

Frightened Man

The Brain(1962)

Furber

Mix Me a Person(1962)

Terence

Two and Two Make Six(1962)

Night Porter

The Giant Behemoth(1959)

Dr. Sampson, the paleontologist

Blind Date(1959)

Postman

Darby O'Gill and the Little People(1959)

Phadrig Oge

I Captured the King of the Leprechauns(1959)

Phadrig Oge

The Boy and the Bridge(1959)

Market Porter

Rooney(1958)

Joe O'Connor

She Didn't Say No!(1958)

William Bates

The Rising of the Moon(1957)

Mickey J., The Poitín Maker (segment 'The Majesty of the Law')

Manuela(1957)

Tommy

Jacqueline(1956)

Campbell

The Titfield Thunderbolt(1953)

Vernon Crump (as Jack McGowran)

Time Bomb(1953)

The Quiet Man(1952)

Ignatius Feeney

The Gentle Gunman(1952)

Patsy McGuire

No Resting Place(1951)

Billy Kyle