An inventor is mistaken for his twin brother, and is forced to take his brother's place in the Royal Air Force.
George Metcalfe / Sydney Metcalfe
Sgt. Hearne
Sgt. Robertson
Sgt. Reader
Charles' Wife
Warrant Officer
Charles - the C.O.
Richards
Mary Dunwoody
Lew - the Stage Manager
Maid
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Writer
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