Anthony Perkins as Norman Bates

Janet Leigh as Marion Crane

Vera Miles as Lila Crane

John Gavin as Sam Loomis

Martin Balsam as Private Det. Milton Arbogast

John McIntire as Sheriff Al Chambers

Simon Oakland as Dr. Fred Richman

Frank Albertson as Tom Cassidy

Patricia Hitchcock as Caroline

Vaughn Taylor as George Lowery

Lurene Tuttle as Mrs. Chambers

John Anderson as California Charlie

Mort Mills as Highway Patrol Officer

Fletcher Allen as Policeman on Steps (uncredited)

Walter Bacon as Church Member (uncredited)

Kit Carson as Extra (uncredited)

Francis De Sales as Deputy District Attorney Alan Deats (uncredited)

George Dockstader as Extra (uncredited)

George Eldredge as Police Chief James Mitchell (uncredited)

Harper Flaherty as Extra (uncredited)

Sam Flint as County Sheriff (uncredited)

Virginia Gregg as Norma Bates (voice) (uncredited)

Alfred Hitchcock as Man Outside Office (uncredited)

Paul Jasmin as Norma Bates (voice) (uncredited)

Lee Kass as Extra (uncredited)

Frank Killmond as Bob Summerfield (uncredited)

Ted Knight as Policeman in Hallway Opening Door (uncredited)

Pat McCaffrie as Police Guard (uncredited)

Hans Moebus as Passerby on Sidewalk (uncredited)

Jeanette Nolan as Norma Bates (voice) (uncredited)

Lillian O'Malley as Extra (uncredited)

Robert Osborne as Man (uncredited)

Fred Scheiwiller as Extra (uncredited)

Helen Wallace as Hardware Store Customer (uncredited)