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