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

Beulah Hutton

Woman Accomplice in Singapore

Al Kikume

Bashan's Attendant

Ethan Laidlaw

Fake Museum Watchman

Tom London

Soldier at American Consulate

Merrill McCormick

Guide-Henchman

Monte Montague

Police Guard

Jack Mower

Airport Inspector

Constantine Romanoff

Tyrone

Churchill Ross

American Tourist

Dick Rush

Cop at Fire Scene

Philip Sleeman

Henchman

Charles Stevens

Lee

Emma Tansey

American Tourist

Ruth Warren

Stewardess