

The Hell's Gate(1989)
Dr. Johns

Wartime(1987)
professor Amundsen

Seven Dangerous Women(1979)
Enrico Cavallari

Blue Nude(1978)

Covert Action(1978)
Grant

The War of the Robots(1978)
Roger

The Biggest Battle(1978)
American Commando Leader

Twilight of Love(1977)

The Bloodsucker Leads the Dance(1977)
Count Richard Marnack

Casanova & Co.(1977)
Marquis Coppafrata (uncredited)

Emanuelle in Bangkok(1976)
Jimmy

Violence for Kicks(1976)
Stefano's father

Reflections in Black(1975)
Anselmi

Zorro(1975)
Fritz von Merkel

The Murri Affair(1974)
Riccardo Murri

The Last Four Days(1974)
Jack Donati

The Minor(1974)
Carlo Salvi (as Giacomo Rossi-Stuart)

Death Smiles on a Murderer(1973)
Dr. von Ravensbrück - Walter's Father

The Fighting Fists of Shanghai Joe(1973)
Tricky

Mafia Junction(1973)
Marco

The Off-Road Girl(1973)
Giulio Morganti

The Lonely Woman(1973)
Richard Leighton

Ben & Charlie(1972)
Hawkins, Pinkerton detective

The Crimes of the Black Cat(1972)
Victor Morgan

The Girl with the Moon Skin(1972)
Giacomo

You're Jinxed, Friend, You've Met Sacramento(1972)
Tom Murdock

The Murder of Julius Caesar(1972)
Brutus

The Godfather(1972)
G.I. (uncredited)

The Night Evelyn Came Out of the Grave(1971)
Dr. Richard Timberlane

Something Creeping in the Dark(1971)
Donald Forrest

Kill Django...Kill First(1971)
Johnny MaGee / Django

The Double(1971)
Giovanni's Brother

Churchill's Leopards(1970)
Major Powell

Hornets' Nest(1970)
Schwalberg

The Night of the Assassin(1970)
Lt. Tibbitt

The Last Day of the War(1970)
Pvt. Kendall

The Weekend Murders(1970)
Ted Collins

Guess Who's Coming for a Snack?(1969)
Comandante del Lager

Shadow of Death(1969)
Gert Muller

The Battle of the Damned(1969)
Major Carter

The 5-Man Army(1969)
One of Gutierrez' Officers

Ragan(1968)
Kohler

Bloody Che Contra(1968)
Prado

Zorro the Fox(1968)
Don Pedro

Colpo sensazionale al servizio del Sifar(1968)

Snow Devils(1967)
Cmdr. Rod Jackson

The Glass Sphinx(1967)
Ray

An Eye for an Eye, A Tooth for a Tooth(1967)
Jeff Gordon / Agent Z-55

Kill, Baby... Kill!(1966)
Dr. Paul Eswai

War Between the Planets(1966)
Cmdr. Rod Jackson

Knives of the Avenger(1966)
King Arald

Degueyo(1966)
Norman Sandel

Ring Around the World(1966)
Hitman

The Big Blackout(1966)
Roland

Duel at Sundown(1965)
Quents

Temple of the White Elephant(1964)
Reginald Milliner

Massacre At Grand Canyon(1964)
Sheriff Burt Cooley

Badmen of the West(1964)
Sheriff Gary Smith

Seven Slaves Against the World(1964)
Gaius

The Revenge of the Gladiators(1964)
Fulvio

Kidnapped to Mystery Island(1964)
Tremal Naik

The Last Man on Earth(1964)
Ben Cortman

Gunfight at Red Sands(1963)
Sheriff Lance Corbett

Catherine of Russia(1963)
Count Poniatowski

Zorro and the Three Musketeers(1963)
Athos

Arms of the Avenger(1963)
Vannozzo Duchesca

The Shortest Day(1963)
Soldato austriaco (uncredited)

The Avenger(1962)
Eurialo

Invasion 1700(1962)
(as Giacomo Rossi-Stuart)

Sodom and Gomorrah(1962)
Ishmael

The Reluctant Saint(1962)

Slave of Rome(1961)

Five Branded Women(1960)

Caltiki, the Immortal Monster(1959)
Prof. Rodriguez's Assistant

The Night of the Great Attack(1959)

Knight Without a Country(1959)
Ruggero

The Silent Enemy(1958)
Rosati

The Day the Sky Exploded(1958)
Stuart (uncredited)

Il conte di Matera(1957)
il duca Paolo Bressi

The House of Intrigue(1956)
Henry

The Red Cloak(1955)

Jeunes mariés(1953)