- David Gorcey - PeeWee
- Martha Wentworth - Mrs. Brady
- Jack Mulhall - Cop at Prizefight with the Lieutenant
- Eddie Foster - Slats Morrison
- Dennis Moore - Dorgan
- Tony Carson - Henchman Dutch
- Pat Costello - Muggs' Trainer
- Dick Ryan - Police Lieutenant
- Bill Cartledge - Johnny Ryan, Muggs' opponent (uncredited)
- Minerva Urecal - Head of Reform School (uncredited)
- Jack Chefe - Henchman Nick (uncredited)
- Jack Carr - Milkman George (uncredited)
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Isabel Kleefeld
-
Beate Langmaack
-
Sabine Timmermann
Capítulo disponible en las siguientes plataformas: