Honor Blackman
— Lynn Pearson
Patrick Holt
— Paul Pearson
Patrick Holt
— Inspector Keyes
Naomi Chance
— Diana
Lloyd Lamble
— Stephen Waller
Andrew Keir
— Mr. Beamster
Viola Lyel
— Mrs. Winnie Beamster
Bryan Coleman
— Bill Forrest
Frederick Piper
— Henry Beamster
Toby Winterbottom
— Bobby Pearson
Madoline Thomas
— Lynn's Mother
Jeanette Hutchinson
— Secretary
Edgar Wreford
— Prison Chaplain
Vincent Lawson
— Coroner