The film stars Edmund Gwenn, who plays a chemist, whose son Lawrence (played by Barry MacKay) is attacked on a train. He appears to have shot the man.
Edmund Gwenn
David Lawrence
Barry MacKay
Jim Lawrence
Aileen Marson
Mary Willett
D.A. Clarke-Smith
Stranger
Viola Lyel
Mrs. Willett
Wally Patch
Sergeant
John Turnbull
Inspector Goodall
Barbara Everest
Mrs. Lawrence
Beatrice Marsden
Mrs. Smith
Philip Hewland
Minor Role
Barry O'Neill
