波利斯·卡洛夫

Boris Karloff

饰：Dr. Janos Rukh (as Karloff)

贝拉·卢戈西

Bela Lugosi

饰：Dr. Felix Benet

弗兰克·劳顿

Frank Lawton

饰：Ronald Drake

Violet Kemble Cooper

饰：Mother Rukh

沃尔特·金斯福特

Walter Kingsford

饰：Sir Francis Stevens

比尤拉·邦蒂

Beulah Bondi

饰：Lady Arabella Stevens

弗兰克·瑞切尔

Frank Reicher

饰：Prof. Michaeljohn

保罗·魏格尔

Paul Weigel

饰：Monsieur Noyer

Georges Renavent

饰：Chief of the Surete

厄尼·亚当斯

Ernie Adams

饰：Bit Role (uncredited)

May Beatty

饰：Mme. LeGrand (uncredited)

Helen Brown

饰：The Blind Girl's Mother (uncredited)

Dudley Dickerson

饰：Native who first sees Rukh glow (uncredited)

温特·霍尔

Winter Hall

饰：The Minister (uncredited)

伊塔·麦克丹尼尔

Etta McDaniel

饰：Diana's Safari Attendant (uncredited)

Walter Miller

饰：The Derelict (uncredited)

Hans Schumm

饰：The Clinic Valet (uncredited)

伊内斯·西伯利

Ynez Seabury

饰：Celeste, a maid (uncredited)

Adele St. Mauer

饰：Mme. Noyer (uncredited)

Ray Turner

饰：Bearer with Geiger Counter (uncredited)

Lucio Villegas

饰：Pierre, the butler (uncredited)

妮迪亚·威斯特曼

Nydia Westman

饰：Briggs, a maid (uncredited)

弗朗西斯·德雷克

Frances Drake

饰：Diana Rukh

Ann Marie Conte

饰：The Blind Girl (uncredited)

Daniel L. Haynes

饰：Rukh's Head Bearer (uncredited)

Lawrence Stewart

饰：The Runner-boy (uncredited)

Alphonse Martell

André Cheron

Isabel La Mal

泰德·比林斯

Ted Billings

Jean De Briac

Daisy Bufford

Robert Graves

Fred 'Snowflake' Toones

Francisco Marán

Lloyd Whitlock

Charles Bastin

保罗·麦卡利斯特

Paul McAllister

Ricca Allen

Edwards Davis

Constant Franke

Charles Fallon