- Mickey Rooney
- Timothy Dennis
- Edmund Gwenn
- Headmaster Justin
- Ian Hunter
- Roger Carlton
- Freddie Bartholomew
- Peter Carlton
- Marta Linden
- Winifred Dennis Carlton
- Juanita Quigley
- Jane 'The Runt' Dennis
- Alan Mowbray
- Mr. Duncan
- Peter Lawford
- Ronnie Kenvil
- Raymond Severn
- 'Inky' Weeld
- Wally Albright
- Boy in Locker Room
- George Aldwin
- Eton Student
- Jimmy Aubrey
- Cabby
- King Baggot
- Man on the Street
- Bobby Barber
- Waiter at the Willow Club
- Dick Baron
- Student
- Gregg Barton
- Coach
- Billy Bevan
- Tour Guide
- Howard Blanchard
- Eton Student
- Lyndon Brook
- Eton Student
- Eddie Buzard
- Boy
- Jimmy Carpenter
- Eton Student
- Bill Cartledge
- Boy in Locker Room Knocked Down By Jane
- Ricardo Lord Cezon
- Student
- Dennis Chaldecott
- Whitson - Eton Student
- Conway Chiles
- Eton Student
- Herbert Clifton
- Flossie's Chauffeur
- Richard Clucas
- Eton Student
- Valerie Cole
- Imogen
- John Considine
- Boy
- Harry Cording
- Bartender
- Harry Duff
- Eton Student
- Bess Flowers
- Party Guest
- Bobbie Hale
- Gardener
- Charles Irwin
- Gelson - Horse Groom
- Wayne Kerruish
- Eton Student
- Terry Kilburn
- Hilspeth
- Carolyn Lee
- Undetermined Role
- Jack Lynn
- Eton Student
- Robert Lynn
- Eton Student
- Aubrey Mather
- Widgeon - Carlton's Butler
- Paul Matthews
- Graham
- Roger McGee
- Boy in Locker Room
- Edmund Mortimer
- Party Guest
- Steven Muller
- Eton Student
- Alan Napier
- Restaurateur
- Minna Phillips
- M'Dame
- Mickey Rentschler
- Boy
- Jerry Rush
- Darrence - Eton Student
- Paul Scardon
- Old Cleaner
- Florence Shirley
- Mrs. Sampson
- Byron Shores
- Mr. Rocky Brown
- Billy Smith
- Boy in Locker Room
- Schuyler Standish
- Eton Student
- Charles Stroud
- Boy in Locker Room
- William Telaak
- Waiter
- Walter Tetley
- Newsboy
- Tina Thayer
- Flossie Sampson
- Cyril Thornton
- Judson - Carlton's Chauffeur
- Johnny Walsh
- Boy
- Billy Wolfstone
- Fat Student
- Al Young
- Referee
