James Stewart

Character: L.B. Jefferies

Grace Kelly

Character: Lisa Fremont

Wendell Corey

Character: Thomas Doyle

Thelma Ritter

Character: Stella

Raymond Burr

Character: Lars Thorwald

Judith Evelyn

Character: Miss Lonelyhearts

Ross Bagdasarian

Character: Songwriter

Georgine Darcy

Character: Miss Torso

Sara Berner

Character: Woman on Fire Escape

Frank Cady

Character: Man on Fire Escape

Jesslyn Fax

Character: Miss Hearing Aid

Rand Harper

Character: Newlywed

Irene Winston

Character: Emma Thorwald

Havis Davenport

Character: Newlywed

Jerry Antes

Character: Dancer with Miss Torso (uncredited)

Benny Bartlett

Character: Man with Miss Torso (uncredited)

Sue Casey

Character: Sunbather (uncredited)

Iphigenie Castiglioni

Character: Woman with Bird (uncredited)

James Cornell

Character: (uncredited)

Don Dunning

Character: Detective (uncredited)

Marla English

Character: Girl at Songwriter's Party (uncredited)

Bess Flowers

Character: Songwriter's Party Guest with Poodle (uncredited)

Art Gilmore

Character: Radio Announcer (voice) (uncredited)

Fred Graham

Character: Detective (uncredited)

Kathryn Grant

Character: Girl at Songwriter's Party (uncredited)

Charles Harvey

Character: (uncredited)

Len Hendry

Character: Policeman (uncredited)

Alfred Hitchcock

Character: Clock-Winder in Songwriter's Apartment (uncredited)

Harry Landers

Character: Man with Miss Lonelyhearts (uncredited)

Alan Lee

Character: Newlyweds' Landlord (uncredited)

Mike Mahoney

Character: Policeman (uncredited)

Jonnie Paris

Character: Sunbather (uncredited)

Eddie Parker

Character: Detective (uncredited)

Robert Sherman

Character: (uncredited)

Dick Simmons

Character: Man with Miss Torso (uncredited)

Ralph Smiley

Character: Carl (uncredited)

Jack Stoney

Character: Ice Man (uncredited)

Anthony Warde

Character: Detective (uncredited)

Gig Young

Character: Jeff's Editor (voice) (uncredited)