Harry Andrews

as Senior Civil Servant

Michael Caine

as Squadron Leader Canfield

Trevor Howard

as Air Vice Marshal Keith Park

Curd Jürgens

as Baron von Richter

Ian McShane

as Sgt. Pilot Andy

Kenneth More

as Group Capt. Baker

Laurence Olivier

as Air Chief Marshal Sir Hugh Dowding

Nigel Patrick

as Group Capt. Hope