"Twins June and Jennifer Gibbons speak only to each other in a language of their own creation. As young teens, they commit a violent crime. After 14 years in Broadmoor Psychiatric Institution, freedom visits them in a mysterious way."
Sharon I. Parker
as June Gibbons
Shirley I. Parker
as Jennifer Gibbons
Juliette Tony
as Young June
Jillian Tony
as Young Jennifer
Ena Cabayo
as Gloria Gibbons
Ruddy L. Davis
as Audrey Gibbons
Beverley Martin
as Greta Gibbons
Natasha Dixon
as Rosie Gibbons
Marcus D'Amico
as Wayne Kennedy
David Blackburn
as Carl Kennedy
Ifan Huw Dafydd
as Tim Thomas
Madeline Adams
as Cathy Arthur
Sandra Voe
as Helen
J.O. Roberts
as Dr Evan Davies
Tony Robinson
as Dr Hamilton
Richard Pescud
as Psychiatrist
Peter Penry-Jones
as Anthony Evans
Anthony Morse
as John Diehl
John Savident
as Judge
Clyde Pollitt
as Clerk of Courts
Alun ap Brinley
as Michael Jones
Di Botcher
as Officer Kyle
Annest Williams
as Officer Whiteley
Gareth Gwyn-Jones
as Dr Rees
Anwen Williams
as Teacher
Margarite Richards
as Guider
Gwenno Dafydd
as Prison Warden
Ted Maynard
as Lt. Kennedy
Jon Amiel
Director
Marjorie Wallace
Writer