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)

Stuart Hall

Tennis Match Spectator (uncredited)

Murray Alper

Boatman (uncredited)

Al Bridge

Tennis Judge (uncredited)

Leonard Carey

Anthonys' Butler (uncredited)

John Daheim

Detective at Merry-Go-Round (uncredited)

Jay Eaton

General - Party Guest (uncredited)

Roy Engel

Policeman (uncredited)

Herbert Evans

Party Guest (uncredited)

Franklyn Farnum

Party Guest (uncredited)

Tommy Farrell

Miriam's Boyfriend (uncredited)

Sam Flint

Train Passenger Requesting Light (uncredited)

Edward Hearn

Lt. Campbell (uncredited)

Al Hill

Carnival Game Proprietor (uncredited)

Edna Holland

Mrs. Joyce (uncredited)

Fred Kelsey

Tennis Match Spectator / Carnival Attendee (uncredited)

Mike Lally

Detective at Carnival (uncredited)

George Magrill

Policeman at Merry-Go-Round (uncredited)

David McMahon

Bystander at Drain (uncredited)

Charles Meredith

Judge Donahue (uncredited)

Ralph Moody

Seedy Man at Carnival (uncredited)

Odette Myrtil

Madame Darville (uncredited)

Richard Neill

Party Guest (uncredited)

Barry Norton

Tennis Match Spectator (uncredited)

Spec O'Donnell

Carnival Patron (uncredited)

Paul Panzer

Bystander at Merry-Go-Round (uncredited)

Minna Phillips

Dowager (uncredited)

Georges Renavent

Monsieur Darville (uncredited)

Suzanne Ridgway

Bystander at Merry-Go-Round (uncredited)

Charles Sherlock

Cop (uncredited)

Dick Wessel

Bill (uncredited)

Robert B. Williams

Bystander at Drain (uncredited)