Darren McGavin

Carl Kolchak

Carol Lynley

Gail Foster

Simon Oakland

Tony Vincenzo

Ralph Meeker

Bernie Jenks

Claude Akins

Sheriff Warren A. Butcher

Charles McGraw

Police Chief Ed Masterson

Kent Smith

District Attorney Tom Paine

Elisha Cook Jr.

Mickey Crawford

Stanley Adams

Fred Hurley

Larry Linville

Dr. Robert Makurji

Jordan Rhodes

Dr. John O'Brien

Barry Atwater

Janos Skorzeny

Edward Faulkner

Las Vegas Policeman (uncredited)

Virginia Gregg

Mrs. Brandon (uncredited)

Buddy Joe Hooker

Intern (uncredited)

Irene Cagen

Edward Faulkner

Sig Frohlich

Eddie Garrett

Virginia Gregg

Buddy Joe Hooker

Monty O'Grady

Peggy Rea

Mark Russell

George Simmons