• 
  Alfred Hitchcock

  regizor

• 
  Joan Harrison

  scenarist

• 
  Priscilla Lane

  Patricia "Pat" Martin
• 
  Robert Cummings

  Barry Kane
• 
  Otto Kruger

  Charles Tobin
• 
  Alan Baxter

  D-ul Freeman
• 
  Clem Bevans

  Neilson
• 
  Alma Kruger

  Henrietta Sutton

• 
  Kernan Cripps

  Man in movie audience
• 
  Helen Dickson

  Invitat
• 
  Charles Sherlock

  Barry's taxi driver
• 
  Frank Marlowe

  Man in newsreel truck
• 
  James Flavin

  Motorcycle cop
• 
  Dale Van Sickel

  FBI assistant - phone operator
• 
  Selmer Jackson

  FBI Chief

• 
  Pat Flaherty

  George, Elevator Operator
• 
  Barton Yarborough

  First FBI man at Mason's house
• 
  Ralph Brooks

  Invitat
• 
  Robert Mitchum

  Passerby
• 
  Paul E. Burns

  Fermier
• 
  Murray Alper

  Mac - the Truck Driver
• 
  Pedro de Cordoba

  Bones aka The Human Skeleton - Circus Troupe
• 
  O.B. Clarence

  Barry Kane
• 
  William H. Wright

  J.C. Lormans, Company official
• 
  Margaret Moffatt

  Mrs. Moore, Neighbor
• 
  Norman Lloyd (I)

  Frank Frye
• 
  Sayre Dearing

  Invitat
• 
  Lee Phelps

  Plant security officer
• 
  Alexander Lockwood

  Marine
• 
  John Eldredge

  Footman
• 
  Hans Conried

  Edward
• 
  Alfred Hitchcock

  Man in front of NY drugstore
• 
  Will Wright

  J.C. Lormans, Company official
• 
  Cyril Ring

  Invitat
• 
  Harold Miller

  Invitat
• 
  Harry Strang

  Motorcycle highway patrolman
• 
  Jack Cheatham

  Detective outside movie theater
• 
  Hardie Albright

  Detectiv
• 
  Ian Wolfe

  Robert, the Butler
• 
  Dorothy Peterson

  Mrs. Mason
• 
  Kathryn Adams

  Young Mother
• 
  Frances Carson

  Society Woman
• 
  Billy Curtis

  Midget - Circus Troupe
• 
  Vaughan Glaser

  Philip Martin