Richard Dillane

as Wernher von Braun

Steve Nicolson

as Sergei Korolev

Vitalie Ursu

as Yuri Gagarin

John Warnaby

as Vasily Mishin

Max Bollinger

as Russian Cosmonaut

Ravil Isyanov

as Valentin Glushko

Robert Lindsay

as Narrator

Rupert Wickham

as Kurt H. Debus

Tim Woodward

as Marshal Mitrofan Nedelin