Jan Trevor
Mona Andrews
Borno
Dr. Harry Trevor
Dr. Frank Bracken
Prince Samu
Dr. Charles Phillips
Georgia Trevor
Allen
Mrs. Camerford Amster
Henry Andrews
Dr. Carl Neff
Jan Trevor as a Boy
Gen. Tichak
Emperor Mena
Navigator (archive footage)
Dr. Pierce
Speaker at Conference
Guard of Mu
Doctor at Conference
Freighter Captain
Grubb, Freighter's Mate
Emperor's Guard / Mu Sentry
Batu
Lancer Officer-in-Charge
Mrs. Henry Andrews
Kutu
