James Stewart as Det. John 'Scottie' Ferguson

Kim Novak as Madeleine Elster / Judy Barton

Barbara Bel Geddes as Marjorie 'Midge' Wood

Tom Helmore as Gavin Elster

Henry Jones as Coroner

Raymond Bailey as Scottie's Doctor

Ellen Corby as Manager of McKittrick Hotel

Konstantin Shayne as Pop Leibel

Lee Patrick as Car Owner Mistaken for Madeleine

Bess Flowers as Diner at Ernie's (uncredited)

Alfred Hitchcock as Man Walking Past Elster's Office (uncredited)

David Ahdar as Priest (uncredited)

Sara Taft as Nun (uncredited)

Ezelle Poule as Older mistaken identity (uncredited)

John Benson as Salesman (uncredited)

Paul Bryar as Capt. Hansen (uncredited)

Steve Conte as Burglar (uncredited)

Fred Graham as Policeman on Rooftop (uncredited)

Forbes Murray as Diner at Ernie's (uncredited)

Raoul Freeman as Diner at Ernie's (uncredited)