Julian Glover as Alexander Dubcek

Paul Chapman as Zdenek Mlynar

Paul Hardwick as Leonid Brezhnev

John Woodnutt as Kosygin

Ray McAnally as Smrkovsky

Ewan Hooper as Cernik

Jeffrey Segal as Kriegel

Hugh Morton as Svoboda

Alan Tilvern as Bilak

Anthony Langdon as Sadovsky

Peter Schofield as Kolder

Barrie Cookson as Simon

Michael Cronin as Spacek