X-15
Voltar
David McLeanMatt Powell
Charles BronsonLt. Col. Lee Brandon
Mary Tyler MoorePamela Stewart
Stanley LivingstonMike Brandon
Ralph TaegerMaj. Ernest Wilde
Brad DexterMaj. Anthony Rinaldi
Kenneth TobeyCol. Craig Brewster
James GregoryTom Deparma
Patricia OwensMargaret Brandon
James StewartHimself / Narrator (voz)- Lisabeth HushDiane Wilde
- Lauren GilbertCol. Jessup
- Frank WatkinsSecurity Policeman
Dick WilsonFlight Engineer