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