Bud Abbott
Bud Alexander
Acting
Lou Costello
Lou Francis
Acting
Nancy Guild
Helen Gray
Acting
Arthur Franz
Tommy Nelson
Acting
Adele Jergens
Boots Marsden
Acting
Sheldon Leonard
Boots Morgan
Acting
William Frawley
Det. Roberts
Acting
Gavin Muir
Dr. Philip Gray
Acting
Sam Balter
Radio Announcer
Acting
John Daheim
Rocky Hanlon
Acting
Walter F. Appler
Professor Dugan (uncredited)
Acting
Bobby Barber
Sneaky (uncredited)
Acting
Howard Banks
Officer (uncredited)
Acting
Richard Bartell
Bald Man (uncredited)
Acting
Phil Bloom
Fight Spectator (uncredited)
Acting
John Breen
Trainer (uncredited)
Acting
Milt Bronson
Ring Announcer (uncredited)
Acting
Ralph Brooks
Man at Bar (uncredited)
Acting
Steve Carruthers
Reporter (uncredited)
Acting
Tom Coleman
Dugan Detective School Graduate (uncredited)
Acting
Chester Conklin
Counter Man (uncredited)
Acting
Bing Conley
Trainer (uncredited)
Acting
Russ Conway
Newspaperman (uncredited)
Acting
Paul Cristo
Fight Spectator (uncredited)
Acting
Frank Dae
Col. Duffie (uncredited)
Acting
Roy Darmour
Man (uncredited)
Acting
Sayre Dearing
Reporter (uncredited)
Acting
Jack Deery
Hospital Visitor (uncredited)
Acting
James Dime
Man in Gym (uncredited)
Acting
Ralph Dunn
Motorcycle Cop (uncredited)
Acting
George Ford
Reporter (uncredited)
Acting
Edward Gargan
Milt (uncredited)
Acting
Harold Goodwin
Bartender (uncredited)
Acting
Dick Gordon
Man (uncredited)
Acting
Kit Guard
Fighter on Rowing Machine (uncredited)
Acting
Bobby Hale
Graduation Spectator (uncredited)
Acting
Chuck Hamilton
Policeman (uncredited)
Acting
Stuart Holmes
Fight Spectator (uncredited)
Acting
Kenner G. Kemp
Policeman (uncredited)
Acting
Johnny Kern
Trainer (uncredited)
Acting
Donald Kerr
Fight Spectator (uncredited)
Acting
Perc Launders
Cop (uncredited)
Acting
George J. Lewis
Torpedo Al (uncredited)
Acting
Rory Mallinson
Tough Guy in Bar (uncredited)
Acting
Paul Maxey
Dr. Turner (uncredited)
Acting
Mathew McCue
Graduation Spectator (uncredited)
Acting
Hans Moebus
Restaurant Patron (uncredited)
Acting
Ralph Montgomery
Photographer (uncredited)
Acting
Mike Morelli
Training Spectator (uncredited)
Acting
William H. O'Brien
Fight Spectator (uncredited)
Acting
Monty O'Grady
Fight Spectator (uncredited)
Acting
Franklin Parker
Photographer (uncredited)
Acting
Jack Perrin
Dugan Detective School Graduate (uncredited)
Acting
Jack Perry
Rocky's Handler (uncredited)
Acting
Victor Romito
Waiter (uncredited)
Acting
Clark Ross
Fight Spectator (uncredited)
Acting
Syd Saylor
Waiter (uncredited)
Acting
Sammy Shack
Fighter (uncredited)
Acting
Edith Sheet
Nurse (uncredited)
Acting
Jack Shutta
Attendant (uncredited)
Acting
Carl Sklover
Lou's Handler (uncredited)
Acting
Billy Snyder
Newspaperman (uncredited)
Acting
Brick Sullivan
Dugan Detective School Graduate (uncredited)
Acting
Frankie Van
Referee (uncredited)
Acting
Herb Vigran
Stillwell (uncredited)
Acting
Billy Wayne
Rooney - Rocky's Manager (uncredited)
Acting