Michele Dotrice
— Emma
Andrew Keir
— Robert Kelvin
Ian Holm
— Mark Lang
Pauline Yates
— Jane Wooler
Peter Vaughan
— Sladeck
John Sharp
— Charlie
Mike Britton
— Roberto
Mary Merrall
— Kevin's Mother
Kay Dotrice
— Ruth
Elizabeth Kentish
— Emma's Mother
Jack May
— Emma's father
John Quentin
— Michael
Norman Scace
— Arnold Crail