Reparto (17)
Robert LoweryKen Morgan
George MacreadyProf. Ernst
Ralph MorganProf. Franklin Arnold
Carole MathewsBabs Arnold
Willie BestFlash
Jack IngramDick Nordik
Anthony WardeJoe FlintTed MapesJoe Butler
Eddie ParkerBlake
Stanley PriceMeadStanley PriceMead
Charles KingFirst Cop with Thor
Kenneth MacDonaldPolice Inspector Hamilton
Bud OsborneMason
Ray CorriganThor
John ElliottProf. Marsden
Kit GuardZoo Guard