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

Lawrence Roman

Writer

John Sturges

Director

Arthur Gardner

Producer

Michael Wayne

Executive Producer

Jules V. Levy

Producer

John Wayne

Executive Producer