Dr. Roger Bentley
Adad
Dr. Jud Bellamin
Elinu, the High Priest
Prof. Etienne Lafarge
Dr. Paul Stuart
Nazar
First Officer
Self (in introduction) (as Dr. Frank C. Baxter)
Arab Foreman (uncredited)
Dancer (uncredited)
Priest (uncredited)
Sharu (uncredited)
Mole Person (uncredited)
Officer (uncredited)
Arab Boy (uncredited)
Guard (uncredited)