Dr. Hayes
Derek (voice)
Self (from Dangerous Years [1947]) (archive footage)
Earl of Kent
Smiley
Dr. Jim Belfield
Bill Herron
Lieutenant Jeremiah Sullivan
Ashley Carstairs
David Morris
Larry Gordon
Toby Bonham
Benjie Galt
Dave King
Senior Cadet Pete Bennett
Swanson
Wilbur "Coney" Cohen
Ens. Jack Wheelwright
Bill Webber
George 'Tough' McCarty
Dexter Franklin
Paul Enley Kyng
Shanley
Larry Price
Harold 'Skinny' Peters
Matt Davis
Jud Tewilliger
Leo Emerson
Schoolboy
Michael 'Micky' Clark
Sam Hooper
Young Sam
Hank
Danny Harland
Raymond Pringle
Ira Gershwin as a Boy
Eddie Rickenbacker as a boy
Sneezer
Johnny Tevis (uncredited)
Peter Bulganov
Peter Kent
Jeb Rickards
Etienne
Lionel
'Blackie' - as a Boy
Tommy Gargan
Frank
David Engstrom
Johnny Smith
Billy Doran
Butch "Shrimp" Malone
Billy Phillips
Billy Freeman
Mickey Moriarty
Tommy
Victor as a boy
Homesteader's Son (uncredited)
Billy Bingham
Winfield
Child
