J. Edgar Hoover J. Edgar Hoover Narrator (prologue and epilogue) (US version) Narrator (prologue and epilogue) (US version)
Basil Radford Basil Radford Careless talker on train (last scene) Careless talker on train (last scene)
Naunton Wayne Naunton Wayne Careless talker on train (last scene) Careless talker on train (last scene)