James Stewart
L.B. 'Jeff' Jefferies
Wendell Corey
Det. Lt. Thomas J. Doyle
Raymond Burr
Lars Thorwald
Judith Evelyn
Miss Lonelyhearts
Ross Bagdasarian
Songwriter
Sara Berner
Woman on Fire Escape
Frank Cady
Man on Fire Escape
Jesslyn Fax
Miss Hearing Aid
Irene Winston
Emma Thorwald
Jerry Antes
Dancer with Miss Torso (uncredited)
Benny Bartlett
Man with Miss Torso (uncredited)
Sue Casey
Sunbather (uncredited)
Iphigenie Castiglioni
Woman with Bird (uncredited)
James Cornell
Minor Role (uncredited)
Don Dunning
Detective (uncredited)
Marla English
Girl at Songwriter's Party (uncredited)
Bess Flowers
Songwriter's Party Guest with Poodle (uncredited)
Art Gilmore
Radio Announcer (voice) (uncredited)
Fred Graham
Detective (uncredited)
Kathryn Grant
Girl at Songwriter's Party (uncredited)
Charles Harvey
Minor Role (uncredited)
Len Hendry
Policeman (uncredited)
Alfred Hitchcock
Clock-Winder in Songwriter's Apartment (uncredited)
Harry Landers
Man with Miss Lonelyhearts (uncredited)
Alan Lee
Newlyweds' Landlord (uncredited)
Mike Mahoney
Policeman (uncredited)
Jonnie Paris
Sunbather (uncredited)
Eddie Parker
Detective (uncredited)
Robert Sherman
Minor Role (uncredited)
Dick Simmons
Man with Miss Torso (uncredited)
Ralph Smiley
Carl (uncredited)
Jack Stoney
Ice Man (uncredited)
Anthony Warde
Detective (uncredited)
Gig Young
Jeff's Editor (voice) (uncredited)