Donald Sumpter

Donald Neilson

Debbie Farrington

Lesley Whittle

Marjorie Yates

Neilson's Wife

Sylvia O'Donnell

Neilson's Daughter

Andrew Burt

Lesley's Brother

Alison Key

Lesley's Sister-in-Law

Ruth Dunning

Lesley's Mother

David Swift

Det. Chief Superintendent

Michael Barrington

Lila Kaye

Ian Merrick

director, producer

Michael Armstrong

writer

Joanne Leighton

writer

Richard Arnell

composer

Joseph Mangine

cinematographer

Teddy Darvas

editor

Irene Lamb

casting director