Farley Granger
Guy Haines
Ruth Roman
Anne Morton
Robert Walker
Bruno Antony
Leo G. Carroll
Sen. Morton
Patricia Hitchcock
Barbara Morton
Kasey Rogers
Miriam Haines
Marion Lorne
Mrs. Antony
Jonathan Hale
Mr. Antony
Howard St. John
Police Capt. Turley
John Brown
Prof. Collins
Norma Varden
Mrs. Cunningham
Robert Gist
Det. Leslie Hennessey
Brooks Benedict
Tennis Umpire (uncredited)
John Doucette
Det. Hammond (uncredited)
Harry Hines
Man Under Merry-Go-Round (uncredited)
Alfred Hitchcock
Man Boarding Train Carrying a Double Bass (uncredited)
Paul McGuire
Train Passenger (uncredited)