The Voice of Merrill

Sam Kydd as Sgt. Baker Valerie Hobson as Alycia Roche James Robertson Justice as Jonathan Roche Edward Underdown as Hugh Allen Henry Kendall as Ronald Parker Ian Fleming as Dr. Forrest Garry Marsh as Inspector Thornton

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