Medvirkende i Jack Armstrong

John HartJack Armstrong

Rosemary La PlancheBetty Fairfield

Claire JamesPrincess Alura

Joe Brown, Jr.Billy Fairfield

Pierre WatkinUncle Jim Fairfield

Wheeler OakmanProf. Hobart Zorn

Jack IngramHenchman Blair

Eddie ParkerHenchman Slade

Hugh ProsserVic Hardy