乔恩·帕特维

Jon Pertwee

饰：Dr Who

凯蒂·曼宁

Katy Manning

饰：Jo Grant

林碧笙

Pik Sen Lim

饰：(as Pik-Sen Lim)

迈克尔·谢尔德

Michael Sheard

饰：Dr Summers

尼尔·麦卡锡

Neil McCarthy

饰：Barnham

Clive Scott

Clive Scott

饰：Linwood

埃里克·梅森

Eric Mason

饰：Senior Prison Officer Green

Barry Wade

Barry Wade

饰：Prison Officer

Martin Gordon

饰：Prison Officer

尼古拉斯·考特尼

Nicholas Courtney

饰：Brigadier Lethbridge Stewart

里查德·富兰克林

Richard Franklin

饰：Captain Mike Yates

Simon Lack

饰：Professor Kettering

Roy Purcell

饰：Chief Prison Officer Powers

Bill Matthews

Bill Matthews

饰：Prison Officer