Obsada:

• John 'Dusty' King Ace Drummond
• Jean Rogers Peggy Trainor
• Noah Beery Jr. Jerry
• Guy Bates Post The Grand Lama
• Lon Chaney Jr. Henchman Ivan
• Jackie Morrow Billy Meredith
• Selmer Jackson Sr. William Meredith
• Robert Warwick Winston
• James B. Leong Henry Kee [Chs. 1-11]
• Chester Gan Kai-Chek
• Arthur Loft The Dragon Chang-Ho
• James Eagles Radio Operator Johnny Wong
• C. Montague Shaw Dr. Trainor
• Frederick Vogeding Bauer [Chs. 1-6]
• Al Bridge Paul Wyckoff
• Hooper Atchley Caldoni
• Edmund Cobb Henchman Nicolai
• Louis Vincenot Lotan [Chs. 1-3]
• Sam Ash Le Page
• Stanley Blystone Henchman Sergei
• George DeNormand Henchman
• Diana Gibson Stewardess
• Gale Gordon Passenger on plane
• Lew Hicks Bit Part
• Eddie Parker Co-pilot O'Connor [Ch. 1] / Mongolian Henchman [Ch. 1] / Car Driver [Ch. 4] / Dimitri, Cave Henchman [Chs. 7-8, 10] / Sedan Bearer [Ch. 10]
• Edward Peil Sr. Queen of India Plane Passenger [Ch. 1]
• House Peters Jr. Pete - Second pilot [Ch. 1] / Clipper Pilot [Ch. 8]
• Dewey Skipworth Sedan Bearer
• Tom Steele Henchman
• Russell Wade Jimmy - Second co-pilot
• Dick Wessel Henchman Boris