Harry Biard

饰：Dr. John Sylvester

西里尔·勒克姆

Cyril Luckham

饰：Josiah Swineyard

Clement McCallin

饰：Prof. Esteban Zoltan

Yvonne Antrobus

Yvonne Antrobus

饰：Jetta Zoltan

Bryan Coleman

饰：Dr. Oliver Tarquin

Harriette Johns

饰：Rebecca Zoltan

John Comer

饰：Briggs

哈里·贝尔德

Harry Baird

饰：Dr. John Sylvester,(as Harry Biard)