"When a hit and run patient is murdered an attending doctor is placed under suspicion."
Robert Beatty
as Dr. Mark Benton
Elizabeth Sellars
as Della Freeman
Peter Coke
as Det. Insp. George Bellamy
Hugh Kelly
as Dr. Craig
Vida Hope
as Jackie Leroy
Janet Butler
as Sister Rogers
Ferdy Mayne
as Charles Constance
James Raglan
as Supt. Grayson
Hugh Pryse
as Mr. Rattray
George Benson
as Prescott
Roger Delgado
as Felix Galegos
Frank Atkinson
as Railway Ticket Clerk (uncredited)
Donald Conlon
as Helios Restaurant Patron (uncredited)
Arthur Dibbs
Robert Gregory
as Man at Northolt Airport (uncredited)
Jean Hardwicke
as Sister (uncredited)
Barry Johns
as Hospital Orderly (uncredited)
Anthony Lang
as Johnny (uncredited)
Ronald Leigh-Hunt
as Sgt. Lewis (uncredited)
Richard Neller
as Hospital Visitor (uncredited)
Harold Sanderson
Marc Sheldon
as Waiter (uncredited)
Toke Townley
as Fred Barker (uncredited)
Martyn C. Webster
Director
Francis Durbridge
Original Series Creator
A.R. Rawlinson
Screenplay
John O'Gorman
Makeup Artist
Ernest G. Roy
Producer
Joseph Sterling
Editor
Bernard Robinson
Art Direction
Gerald Gibbs
Director of Photography
E.S. Laurie
Production Manager
Betty Lee
Hairdresser
Wilfred Burns
Music
Buddy Booth
Third Assistant Director
Olive Swinney
Wardrobe Assistant
Harry Raynham
Sound
Peter Lamb
Clapper Loader
Noel Rowland
Camera Operator
Marjorie Owens
Continuity
Pat Kelly
Assistant Director
W. H. Lindop
Sound Recordist
Conductor
