Lionel Atwill
Dr. Ralph Benson, posing as Graham
Una Merkel
Aunt Margaret Wentworth
Nat Pendleton
Red Hogan
Claire Dodd
Patricia Wentworth
Anne Nagel
Mrs. William Saunders
Hardie Albright
William Saunders
Richard Davies
Jim
John Eldredge
Dwight, Ship's Officer
Mala
Barab
Noble Johnson
Native Chief Elan
Rosina Galli
Tanaa, Chief's Wife
Al Kikume
Kalo
Milton Kibbee
Hadley
Byron Shores
Crandall, murdered detective
