Griffith Humphreys

饰：Professor Michaels

T. Gordon Blythe

饰：Ali

Bernard Brunel

饰：Tobias Lantern

H. St. Barbe West

饰：Sir Rudolph Cantler

埃德蒙·格温

Edmund Gwenn

饰：Banting

Gilbert Davis

饰：Doctor Cornell

Norah Howard

饰：Gwen Banting

戈登·哈克

Gordon Harker

饰：Sam Knudge

Gillian Lind

饰：Kate Banting

阿瑟·万特纳

Arthur Wontner

饰：Sir Charles Wallington

简·韦尔什

Jane Welsh

饰：Sonia Wallington

Cyril Raymond

饰：Jim Wrench