- Freddie Bartholomew
- Freddie Hewlett
- Billy Halop
- James 'Jimmie' Fletcher
- Huntz Hall
- Bushy Thomas
- Bobby Jordan
- Jockey
- Boyd Davis
- Maj. E.C. Carter - Academy Commandant
- William Blees
- Cadet Capt. Wesley Rogers
- Richard Noyes
- Cadet Sgt. Sable
- Joseph Crehan
- Mr. Jeffrey Ferguson
- Don Beddoe
- Saginaw Jake
- Charles Lind
- Cadet Pell
- Billy Lechner
- Cadet Baker
- Peter Lawford
- Cadet Wilbur
- Rudolph Anders
- Horner - Nazi Saboteur
- Wally Albright
- Student
- Wallace Chadwell
- Young Boy
- Sherlee Collier
- Barbara Hewlett
- Joe Conti
- Jumpy
- Johnny Duncan
- Cadet
- Edythe Elliott
- Mrs. Pamela Ferguson
- Jesse Graves
- Butler
- Brenda Henderson
- Angela Hewlett
- Tom London
- State Trooper
- Kenneth MacDonald
- Keller
- Joe McGuinn
- State Trooper
- Charles Miller
- Captain McDermott
- Bernard Punsly
- Bad Eye - Gang Member
