Veteran extra Aileen Lewis is not only the policewoman standing in the dock behind Andrée Debar, she's also in the public gallery sitting towards the back on the right hand side of the screen.
Jack Melford and Kynaston Reeves both played Mr.Quelch in the Billy Bunter TV series.
Opening credits: All characters depicted in this film are fictitious. Any similarity to any person living or dead is coincidental.