John Mills

Jim Bloggs (voice)

Peggy Ashcroft

Hilda Bloggs (voice)

Robin Houston

Radio Announcer (voice)

James Russell

Russian submariner (voice)

David Dundas

Additional Voices (voice)

Matt Irving

Additional Voices (voice)

Bernard Montgomery

Self (archive footage)

Harry S. Truman

Self (archive footage)

Josef Stalin

Self (archive footage)