Bud Abbott

Bud Alexander

Lou Costello

Lou Francis

Nancy Guild

Helen Gray

Arthur Franz

Tommy Nelson

Adele Jergens

Boots Marsden

Sheldon Leonard

Boots Morgan

William Frawley

Det. Roberts

Sam Balter

Radio Announcer

John Daheim

Rocky Hanlon

Bobby Barber

Sneaky (uncredited)

Steve Carruthers

Reporter (uncredited)

Tom Coleman

Dugan Detective School Graduate (uncredited)

Chester Conklin

Counter Man (uncredited)

Russ Conway

Newspaperman (uncredited)

Frank Dae

Col. Duffie (uncredited)

Sayre Dearing

Reporter (uncredited)

James Dime

Man in Gym (uncredited)

Ralph Dunn

Motorcycle Cop (uncredited)

George Ford

Reporter (uncredited)

Edward Gargan

Milt (uncredited)

Harold Goodwin

Bartender (uncredited)

Dick Gordon

Man (uncredited)

Chuck Hamilton

Policeman (uncredited)

Stuart Holmes

Fight Spectator (uncredited)

Kenner G. Kemp

Policeman (uncredited)

Johnny Kern

Trainer (uncredited)

Donald Kerr

Fight Spectator (uncredited)

George J. Lewis

Torpedo Al (uncredited)

Rory Mallinson

Tough Guy in Bar (uncredited)

Paul Maxey

Dr. Turner (uncredited)

Mathew McCue

Graduation Spectator (uncredited)

Hans Moebus

Restaurant Patron (uncredited)

William H. O'Brien

Fight Spectator (uncredited)

Monty O'Grady

Fight Spectator (uncredited)

Franklin Parker

Photographer (uncredited)

Jack Perrin

Dugan Detective School Graduate (uncredited)

Jack Perry

Rocky's Handler (uncredited)

Victor Romito

Waiter (uncredited)

Clark Ross

Fight Spectator (uncredited)

Syd Saylor

Waiter (uncredited)

Carl Sklover

Lou's Handler (uncredited)

Brick Sullivan

Dugan Detective School Graduate (uncredited)

Frankie Van

Referee (uncredited)

Herb Vigran

Stillwell (uncredited)

Billy Wayne

Rooney - Rocky's Manager (uncredited)