John Hart
Jack Armstrong
Acting
Rosemary La Planche
Betty Fairfield
Acting
Claire James
Princess Alura [Chs. 3-6, 9-11, 15]
Acting
Joe Brown Jr.
Billy Fairfield (as Joe Brown)
Acting
Pierre Watkin
Uncle Jim Fairfield
Acting
Wheeler Oakman
Prof. Hobart Zorn
Acting
Jack Ingram
Henchman Blair
Acting
Eddie Parker
Henchman Slade
Acting
Hugh Prosser
Vic Hardy
Acting