Evalyn Knapp

Pauline Hargrave

Craig Reynolds

Robert Ward (as Robert Allen)

James Durkin

Prof. Hargrave

John Davidson

Dr. Bashan

Sonny Ray

Willie Dodge

Frank Lackteen

Fang

Pat O'Malley

Tim Sullivan

William Desmond

Prof. Thompson

Josef Swickard

Haggins, Foreign Consul

William Worthington

American Consul

Adolph Milar

Capt. Drake

James Wang

Foo Chow, Bashan's Henchman

Don Brodie

Airline Official

Wong Chung

Chinese Man

George DeNormand

New York Henchman

Ray Taylor