John 'Dusty' King
Ace Drummond
Jean Rogers
Peggy Trainor
Noah Beery Jr.
Jerry
Jackie Morrow
Billy Meredith
Chester Gan
Kai-Chek
Guy Bates Post
The Grand Lama
Lon Chaney Jr.
Henchman Ivan
Selmer Jackson
William Meredith, Sr.
Robert Warwick
Winston
James B. Leong
Henry Kee
Arthur Loft
Chang-Ho
James Eagles
Johnny Wong, Radio Operator
C. Montague Shaw
Dr. Trainor
Frederick Vogeding
Bauer
