George Maharis
— Gus Monk
Janet Leigh
— Janice Barnes
Rick Jason
— Wideman
Carl Betz
— Danny Gouzenko
Jack Albertson
— Tinker
Raymond St. Jacques
— Lieutenant Edward Heritage
William Smithers
— Leo Barnes
Jack Soo
— Hip Guy
Edward G. Robinson Jr.
— Trapp
George Burrafato
— Stanger
Linda Marsh
— Lisa Daniels
Georges Saurel
— Sergeant Mawson
Joe Besser
— Herbie
Walter Reed
— Director
John Hancock
— Charlie
Robert Nash
— Doorman (as Bob Nash)
Mary Wickes
— Mrs. Medford