罗伊·辛尼斯

Roy Thinnes

饰：Colonel Glenn Ross

伊恩·亨德里

Ian Hendry

饰：John Kane

帕特里克·怀马克

Patrick Wymark

饰：Jason Webb

琳恩·洛​​灵

Lynn Loring

饰：Sharon Ross

Loni von Friedl

饰：Lisa Hartmann

Franco De Rosa

饰：Paulo Landi (as Franco Derosa)

乔治·休厄尔

George Sewell

饰：Mark Neuman

艾德·毕肖普

Ed Bishop

饰：David Poulson (as Edward Bishop)

Philip Madoc

饰：Dr. Pontini

弗拉杰克·舍伊巴尔

Vladek Sheybal

饰：Psychiatrist

乔治·迈克尔

George Mikell

饰：Captain Ross

赫伯特·罗姆

Herbert Lom

饰：Doctor Hassler

Keith Alexander

饰：EuroSEC Launch Controller (uncredited)

Anthony Chinn

Anthony Chinn

饰：Mongolian rescue crew member (uncredited)

尼古拉斯·考特尼

Nicholas Courtney

饰：Medical Data Analyst (uncredited)

Cy Grant

饰：Dr. Gordon (uncredited)

Annette Kerr

Annette Kerr

饰：Nurse (uncredited)

Martin King

饰：Dove Service Technician (uncredited)

Basil Moss

饰：Monitoring Station Technician (uncredited)

Norma Ronald

饰：Pam Kirby, Webb's Secretary (uncredited)

Jeremy Wilkin

Jeremy Wilkin

饰：Trajectory Analyst (uncredited)