

Glam(1998)
Don Mallon

Walking Thunder(1995)
Gun Trader

RoboCop 3(1993)
Sergeant Reed

Short Cuts(1993)
Knute Willis

I Don't Buy Kisses Anymore(1992)
Fred

Original Intent(1992)
Ben Reid

Diplomatic Immunity(1991)
Ferguson

RoboCop 2(1990)
Sergeant Warren Reed

Miracle Mile(1989)
Fred the Cook

Mercenary Fighters(1988)
Colonel Kyemba

RoboCop(1987)
Sgt. Warren Reed

Good to Go(1986)
Max

Between the Darkness and the Dawn(1985)
Principal

My Science Project(1985)
Desk Sergeant

Fast Forward(1985)
Mr. Hughes

Dark Mirror(1984)
Higgens

Obsessive Love(1984)
Douglas

Cloak & Dagger(1984)
Lt. Fleming

Andrea's Story: A Hitchhiking Tragedy(1983)
Sgt. Corbett

Making of a Male Model(1983)
Policeman

I'm Dancing as Fast as I Can(1982)
Teddy

Carny(1980)
Jerry
The Harlem Globetrotters Meet Snow White(1980)
Marques (voice)

Guyana: Crime of the Century(1979)
Oliver Ross

The Child Stealer(1979)
Houghton

Green Eyes(1977)
Hal

Roger & Harry: The Mitera Target(1977)
Lt. Shelley

Buffalo Bill and the Indians, or Sitting Bull's History Lesson(1976)
The Wrangler (Oswald Dart)

Treasure of Matecumbe(1976)
Ben

Almos' a Man(1976)
Bob Glover

Nashville(1975)
Wade Cooley

Walking Tall Part II(1975)
Obra Eaker

Heatwave!(1974)
Offical

Willie Dynamite(1974)
Baylor the Pimp (uncredited)

Coffy(1973)
King George

A Dream for Christmas(1973)
George Briggs (as Robert Do Qui)

Visions...(1972)
Andrews

The Man(1972)
Webson

Lieutenant Schuster's Wife(1972)
Det. McCann

The Red, White, and Black(1970)
Eli Brown

Tarzan's Deadly Silence(1970)
Metusa

The Devil's Eight(1969)
Henry Reed

Uptight(1968)
Street Speaker

Doctor, You've Got to Be Kidding!(1967)
Orderly

The Fortune Cookie(1966)
Man in Bar (as Bob Doqui)

Clarence, the Cross-Eyed Lion(1965)
Unteroffizier

Taffy and the Jungle Hunter(1965)

The Cincinnati Kid(1965)
Philly (uncredited)