达纳·安德鲁斯

Dana Andrews

饰：Dr. John Holden

佩吉·卡明斯

Peggy Cummins

饰：Joanna Harrington

尼尔·麦吉尼斯

Niall MacGinnis

饰：Dr. Julian Karswell

莫瑞斯·德纳姆

Maurice Denham

饰：Professor Henry Harrington

阿西妮·瑟伦

Athene Seyler

饰：Mrs. Karswell

利亚姆·雷德蒙

Liam Redmond

饰：Professor Mark O'Brien

雷金纳德·贝克威思

Reginald Beckwith

饰：Mr. Meek

尤安·罗伯茨

Ewan Roberts

饰：Lloyd Williamson

Peter Elliott

饰：Professor K.T. Kumar

Rosamund Greenwood

Rosamund Greenwood

饰：Mrs. Meek

布莱恩·怀尔德

Brian Wilde

饰：Rand Hobart

劳埃德·兰布尔

Lloyd Lamble

饰：Detective Simmons

Peter Hobbes

饰：Superintendent

查尔斯·劳埃德·帕克

Charles Lloyd Pack

饰：Chemist

John Salew

饰：Librarian

Janet Barrow

Janet Barrow

饰：Mrs. Hobart (deleted from US print)

珀西·赫伯特

Percy Herbert

饰：Farmer (deleted from US print)

Lynn Tracy

Lynn Tracy

饰：Air Hostess (deleted from US print)

巴拉德伯克利

Ballard Berkeley

饰：1st Reporter (uncredited)

Shay Gorman

饰：Narrator (uncredited)

John Harvey

饰：Hobart's Brother (uncredited)

Walter Horsbrugh

Walter Horsbrugh

饰：Bates, the Butler (uncredited)

Michael Peake

饰：2nd Reporter (uncredited)

伦纳德 夏普

饰：Ticket Collector (uncredited)

理查德·利奇

Richard Leech

饰：Inspector Mottram