波利斯·卡洛夫

Boris Karloff

饰：James Lee Wong

玛乔丽·雷诺兹

Marjorie Reynolds

饰：Roberta 'Bobbie' Logan

格兰特·威瑟斯

GranvilleG.Withers

饰：Capt. William 'Bill' Street (Homicide Squad)

William Stelling

饰：Dick Fleming

Catherine Craig

饰：Cynthia Wentworth

盖·厄舍

Guy Usher

饰：Paul Fleming (Dick's father)

亨利·布兰登

Henry Brandon

饰：Victor 'Vic' Martin (attorney)

Melvin Lang

饰：Cyrus P. Wentworth

Wilbur Mack

饰：Matthews (Wentworth's assistant)

肯尼思·哈尔兰

Kenneth Harlan

饰：Ludlow (chauffeur)

理查德·洛

Richard Loo

饰：Tong leader

特利斯特拉姆·科芬

Tristram Coffin

饰：Baldwin (insurance adjuster) (uncredited)

Mike Donovan

饰：Det. Mike (uncredited)

吉布森·格沃兰德

Gibson Gowland

饰：Doctor (uncredited)

Jack Kennedy

饰：Police Sgt. Casey (uncredited)

Maxine Leslie

饰：Miss Reed (Cyrus' secretary) (uncredited)

Moy Ming

饰：Aged Tong member (uncredited)

安杰洛·罗西托

Angelo Rossitto

饰：Newsboy #3 in montage (uncredited)

Bill Willmering

Bill Willmering

饰：Det. Blake (uncredited)