Hugh O'Brian as Daniel Slade Hardy

Robert Evans as Felix Griffin

Dolores Michaels as May Matthewson

Linda Cristal as Elena Hardy

Stephen McNally as Marshal Frank Emmett

June Blair as Saloon Girl

Edward Andrews as Judge Parker

Ron Ely as Deputy Jim Dyer

Ken Scott as Paul Finney

Emile Meyer as Ames, Head Prison Guard

Gregory Morton as Defense Attorney Gage

Shari Lee Bernath as Janie Hardy

Hal Needham as Courtroom Spectator (uncredited)

Georgia Simmons as Maude Finney

Kenner G. Kemp as Courtroom Spectator