Kadro (21)
Peter FinchJohnnie Byrne
Stanley HollowayFred Andrews
Mary PeachPauline West
Donald PleasenceRenfrew
Billie WhitelawMary
Hugh BurdenTim Maxwell
Rosalie CrutchleyAlice Byrne
Dennis PriceFlagg
Mervyn JohnsCharlie Young
Michael GoodliffeDr. West
Geoffrey KeenThe Prime Minister - Reginald Stevens
Paul RogersSydney Johnson
Peter BarkworthHenderson
Fenella FieldingSheilah
Derek FrancisFrank
Gladys HensonMrs. Sarah Arscott - Constituent at Party Meeting
Conrad PhillipsDrakeMaureen PryorLabour Party Member
George RoseEdward Collins
Peter SallisM.P.
Oliver ReedMan with Bucket on His Head (uncredited)