On the Double

American GI Ernie Williams, admittedly weak-kneed, has an uncanny resemblance to British Colonel MacKenzie. Williams, also a master of imitation and disguise, is asked to impersonate the Colonel, ostensibly to allow the Colonel to make a secret trip East. What Williams is not told is that the Colonel has recently been a target of assassins. After the Colonel's plane goes down, the plan changes and Williams maintains the disguise to confuse the Nazis about D-Day.

• Melville ShavelsonDirector
• Jack RoseWriter
• Melville ShavelsonWriter
• Leith StevensOriginal Music Composer

• Danny KayePfc. Ernie Williams
• Dana WynterLady Margaret MacKenzie-Smith
• Wilfrid Hyde-WhiteColonel Somerset
• Margaret RutherfordLady Vivian
• Diana DorsSergeant Bridget Stanhope
• Allan CuthbertsonCaptain Patterson
• Jesse WhiteCorporal Joseph Praeger
• Gregory WalcottColonel Rock Houston
• Terence de MarneySergeant Colin Twickenham
• Rex EvansGeneral Carleton Brown Wiffingham
• Rudolph AndersOberkommandant
• Edgar BarrierBlankmeister