Donald O'Brien

Briganti: Amore e libertà
Barone
Movie, 1994

Flight from Paradise
Movie, 1990

Ator III: The Hobgoblin
Gunther
Movie, 1990

Mortacci
Archibald Williams
Movie, 1989

The Name of the Rose
Pietro d'Assisi
Movie, 1986

Hands of Steel
Professor Olster
Movie, 1986

Fighting Centurions
Monk
Movie, 1984

Female Mercenaries II
General
Movie, 1984

2020 Texas Gladiators
Black One
Movie, 1982

Doctor Butcher M.D.
Dr. Obrero / Dr. Butcher (US version)
Movie, 1980

The Day Christ Died
Roman Soldier
Movie, 1980

Counterfeit Commandos
SS Officer
Movie, 1978

They Died with Their Boots On
Flertcher
Movie, 1978

Emanuelle's Amazon Adventure
Donald McKenzie
Movie, 1977

A Man Called Blade
Burt Craven
Movie, 1977

Ice Man
Sgt. Stricker
Movie, 1977

Keoma
Caldwell
Movie, 1976

Four of the Apocalypse
Sheriff of Salt Flat
Movie, 1975

Giochi erotici di una famiglia per bene
Professor Riccardo Rossi
Movie, 1975

Challenge to White Fang
Liverpool
Movie, 1974

Zanna Bianca alla riscossa
Caroll
Movie, 1974

Sex of the Witch
Inspector
Movie, 1973

The Executioner of God
Frank
Movie, 1973

Sei bounty killers per una strage
Frank
Movie, 1973

Two Brothers in Trinity
Lester O'Hara
Movie, 1972

God Is My Colt .45
Collins (as Donal O'Brien)
Movie, 1972

Finders Killers
Jack Forest
Movie, 1971

Paid in Blood
Lee Rast
Movie, 1971

Sheriff of Rock Springs
Burt Jones
Movie, 1971

The Last Traitor
Captain Ned Carter
Movie, 1971

Big Gundown 2: Run, Man, Run
Daniel Cassidy
Movie, 1968

Western, Italian Style
(as Donal O'Brien)
Movie, 1968

The Night of the Generals
Plotting German Officer
Movie, 1967

Grand Prix
Wallace Bennett
Movie, 1966

Gracious Living
American Officer
Movie, 1966

Cloportes
Un visiteur de la galerie
Movie, 1965

Nick Carter and Red Club
Movie, 1965

The Train
Schwartz
Movie, 1964

De l'assassinat considéré comme un des beaux-arts
Movie, 1964

Weekend at Dunkirk
L'officier anglais
Movie, 1964

The Wretches
Movie, 1960