Cast

• Laurence Olivier — Adm. Sir Gerald Scaith
• Michael Medwin — Milroy
• Michael Caine — Philip Kimberley / Sergei Kuzminsky
• Charles Gray — Sir James Chorley
• David Kelly — Cameron
• Vladek Sheybal — Gen. Zorin
• Susan George — Penelope Kimberley / Annabelle Kimberley
• Robert Powell — Jamie Fraser
• Eric Sevareid — Himself
• Richard Aylen — Older Kimberley