Cast
Dr. Harry Trevor
Dr. Frank Bracken
Dr. Charles Phillips
Prince Samu [Chs. 11-12]
Speaker at Conference [Ch. 1]Georgia Trevor [Ch. 1] Mrs. Henry Andrews 
Allen
Mrs. Camerford Amster [Ch. 1]Henry Andrews 
Dr. Carl Neff [Ch. 1]
Dr. Carl Neff
Jan Trevor as a Boy [Ch. 1]Gen. Tichak [Ch. 12] 
Emperor Mena [Ch. 12]Jan's Chimpanzee Playmate 
Navigator, хроника, not listed in credits
Dr. Pierce [Ch. 1], not listed in creditsKutu, not listed in credits, слухи Guard of Mu [Chs. 10-12], not listed in credits 
Doctor at Conference [Ch. 1], not listed in credits
Freighter Captain, not listed in creditsGrubb, Freighter's Mate [Ch. 1], not listed in credits 
Emperor's Guard [Ch. 11] / Mu Sentry [Ch. 12], not listed in credits
Batu [Ch. 12], not listed in credits
Lancer Officer-in-Charge [Chs. 10-12], not listed in creditsProducers
ассоциированный продюсер 
