McQ
Police Lieutenant Lon McQ investigates the killing of his best friend and uncovers corrupt elements of the police department dealing in confiscated drugs.
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)