表演
菲利丝·卡沃特/lydia heathley
noel willman/dr. dennis bord
geoffrey denton/fisher
marjorie fielding/mother heathley
john martin
hal osmond/agent lawson
marianne stone/whitehall telephone operator
穆瑞尔·帕弗洛/caroline cartier
patricia glyn
caven watson/dr. ferguson
john lorrell
james donald/prof. michael heathley
philip ray
patric doonan/brian jackson
罗伯特·比提/maj. sam seagram
哈特利·保沃
maurice denham/prof. carrington
cyril chamberlain/police inspector
johnnie schofield/dart player in pub
walter fitzgerald/sir charles craddock
stanley maxted/prof. adams
john warren
herbert lomas/george jackson
tucker mcguire
douglas bradley-sm..
赫伯特·罗姆/dr. alex leon
角色
agent lawson
brian jackson
caroline cartier
dart player in pub
dr. alex leon
dr. dennis bord
dr. ferguson
fisher
george jackson
lydia heathley
maj. sam seagram
mother heathley
police inspector
prof. adams
prof. carrington
prof. michael heathley
scenes deleted
sir charles craddock
uncredited
whitehall telephone operator