Basil Rathbone

Prof. Hartman, Lunar 7

Faith Domergue

Dr. Marsha Evans, Vega

John Bix

John the Robot

Геннадий Вернов

Andre Ferneau, Sirius (archive footage)

Георгий Жжёнов

Hans Walter, Sirius (archive footage)

Георгий Тейх

Dr Kern, Vega (archive footage) (uncredited)

Владимир Емельянов

Cmdr. Brendan Lockhart, Sirius (archive footage) (uncredited)

Юрий Саранцев

Allen Sherman, Vega (archive footage) (uncredited)

Marc Shannon

Christopher Brand

Lewis Keane

Curtis Harrington

Pavel Klushantsev