The Voice of Merrill

詹姆斯·罗伯逊·贾斯蒂斯 as Jonathan Roche Edward Underdown as Hugh Allen Henry Kendall as Ronald Parker Ian Fleming as Dr. Forrest Valerie Hobson as Alycia Roche Garry Marsh as Inspector Thornton Sam Kydd as Sgt. Baker

Monty Berman Producer, Director of Photography Robert S. Baker Producer Desmond Davis Focus Puller John Gilling Writer, Director