Richard Diamond, Private Detective

Richard Diamond / Chuck Garrett

Sgt. Alden

Lt. Pete Kile / Lieutenant Kile

Lt. Dennis McGough

Paul Manners / Clifton

Harold Jason / Sidney Gordon / Green

Larry / Charlie Wendell

Claire Toujours / Babs Felt

Bunny / Mindy Parker

Norman Dewitt / Bill Reade

Sgt. Riker

Paul Schofield / Ted Anthony

Steve Gorgas / Thug (uncredited)

Johnson / George

Edna Shaw / Dr. Tesla

Johnny Prescott (uncredited) / Charlie Kane

Emilio Tomas / Axel

Laura Renault / Winifred O'Hara

Bartender / Joe

Tim Wilson / Frank Bonner

Rudi Trekhala / Mickey Farmer

Joey Kane / Warburton Flagge

Stuart Simons / Gerald Clayton

Mike Gower / Joel Finlay