The Mysterious Mr. Wong

Lugosi Béla

Mr. Fu Wong aka Lysee

Wallace Ford

Jason H. 'Jay' Barton

Arline Judge

Peg

E. Alyn Warren

Phillip Tsang

Lotus Long

Moonflower

Robert Emmett O'Connor

Officer 'Mac' McGillicuddy

Edward Peil Sr.

Jen Yu

Luke Chan

Prof. Chan Fu

Lee Shumway

Steve Brandon

Etta Lee

Lusan

Ernest F. Young

Chuck Roberts

Theodore Lorch

Wong Henchman

James B. Leong

Wong Henchman

Chester Gan

Tung's Secret Service Agent