Générique complet
The Man in Blue
Robert Wilcox
Frankie Dunne
Edward Ellis
Martin Dunne
Nan Grey
June Hanson
Richard Carle
Willie Loomis
Ralph Morgan
The 'Professor'
Alma Kruger
Mrs. Dunne
Bill Burrud
Frankie as a Boy
Aggie Herring
Aggie
FB
Frederick Burton
Parke Lewis
HC
Herbert Corthell
Patrolman Pat Casey
Selmer Jackson
District Attorney
Milburn Stone
Henchman 'Dutch'