Characters played by John Bentley
Paul Temple
Characters played by Dinah Sheridan
Steve Temple
Characters played by Margaretta Scott
Mrs. Barbara Trevellyan
Characters played by Abraham Sofaer
Dr. Charles Kohima
Characters played by Celia Lipton
Norma Rice
Characters played by Jack Raine
Sir Graham Forbes
Characters played by Alan Wheatley
Edward Lathom
Characters played by Hugh Pryse
Wilfred Davies
Characters played by John McLaren
Leo Brent
Characters played by Michael Golden
Frank Chester
Characters played by Ian McLean
Inspector Crane
Characters played by Shaym Bahadur
Rikki
Characters played by Merle Tottenham
Millie
Characters played by Mary Midwinter
Carol Reagan
Characters played by Wally Patch
Spider Williams
Characters played by Aubrey Mallalieu
Waiter at The Falcon Inn
Characters played by Hugh Miller
Doctor
Characters played by Maureen Glynne
Ivy (Girl in Boat)
Characters played by Paul Sheridan
Maitre d'Hotel
Characters played by George Merritt
Ticket Inspector
Characters played by Harry Herbert
Boatman
Characters played by Gerald Rex
Bert (Boy in Boat)
Characters played by Marion Taylor
Esther Van Ralston
Characters played by Steve Race
Pianist
Characters played by Michael Ward
Passer-by