Detective implacable

John Wayne

McQ

Eddie Albert

Kosterman

Diana Muldaur

Lois

Colleen Dewhurst

Myra

Clu Gulager

Toms

David Huddleston

Pinky

Julian Christopher

J.C.

Al Lettieri

Santiago

Julie Adams

Elaine

Roger E. Mosley

Rosey

William Bryant

Stan Boyle

Richard Kelton

Radical

Joe Tornatore

LaSalle

Dick Friel

Bob Mahoney

Richard Eastham

Walter Forrester

Fred Waugh

Bodyguard

Larry Buck

Chief Grogan (uncredited)

Leslie Carlson

Radical (uncredited)

Robert Dietrich

1st Heistman (uncredited)

Matt Donovick

2nd Heistman (uncredited)

Jack Evans

Harry (uncredited)

June Foray

Disk Jockey (voice) (uncredited)

Azizi Johari

Hot Dog Girl at Snack Bar (uncredited)

James Johnson

1st Patrol Car Officer (uncredited)

Gary Lynn

1st Patrol Car Officer (uncredited)

Arthur Mason

Sal (uncredited)

Steve McDonald

Police Officer (uncredited)

Cynthia Mitchell

2nd Fox (uncredited)

Steve Moriarty

Hospital Orderly / Driver (uncredited)

Hal Needham

Santiago Henchman (uncredited)

John Price

Punk Kid (uncredited)

Eugene Rice

Workman (uncredited)

Chuck Roberson

Santiago's Bodyguard (uncredited)

Marvin Rosand

Property Officer (uncredited)

Kim Sanford

Ginger McQ (uncredited)

George Selvidge

Commissioner (uncredited)

Steve Singer

Emergency Doctor (uncredited)

Glenn R. Wilder

Motorcyclist (uncredited)