Arthur Franz
饰 Tommy Nelson
Adele Jergens
饰 Boots Marsden
Sheldon Leonard
饰 Boots Morgan
William Frawley
饰 Det. Roberts
Gavin Muir
饰 Dr. Philip Gray
Sam Balter
饰 Radio Announcer
John Daheim
饰 Rocky Hanlon
Walter F. Appler
饰 Professor Dugan (uncredited)
Bobby Barber
饰 Sneaky (uncredited)
Howard Banks
饰 Officer (uncredited)
Richard Bartell
饰 Bald Man (uncredited)
Phil Bloom
饰 Fight Spectator (uncredited)
John Breen
饰 Trainer (uncredited)
Milt Bronson
饰 Ring Announcer (uncredited)
Ralph Brooks
饰 Man at Bar (uncredited)
Steve Carruthers
饰 Reporter (uncredited)
Tom Coleman
饰 Dugan Detective School Graduate (uncredited)
