Michael Redgrave
Ruxton Towers Reformatory Governor
Tom Courtenay
Colin Smith
Avis Bunnage
Mrs. Smith
Alec McCowen
Brown, House Master
James Bolam
Mike
Joe Robinson
Roach
Julia Foster
Gladys
James Fox
Willy Gunthorpe - Ranley School Runner (uncredited)
John Thaw
Bosworth (uncredited)
Arthur Mullard
Chief Borstal Officer (uncredited)
Peter Madden
Mr. Smith (uncredited)
Frank Finlay
Booking Office Clerk (uncredited)
Ray Austin
Harry Craig (uncredited)
Derek Fowlds
Borstal Inmate (uncredited)
Billy Murray
Borstal Inmate (uncredited)
Jim Brady
Man in Cafe (uncredited)
Charles Dyer
Bit Part (uncredited)
Edward Fox
Extra (uncredited)
Victor Harrington
Army Officer at Sports Day (uncredited)
Philip Martin
Stacy (uncredited)
Christopher Parker
Bill Smith - Colin's Brother (uncredited)
Corin Redgrave
Spectator at Sports Day (uncredited)
Dervis Ward
Detective
Topsy Jane
Audrey
Philip Martin
Stacy (uncredited)
John Brooking
Green (uncredited)
Raymond Dyer
Gordon (uncredited)
Anthony Sagar
Fenton (uncredited)
Peter Kriss
Scott (uncredited)
Dallas Cavell
Lord Jaspers (uncredited)
James Cairncross
Mr. Jones (uncredited)
Robert Percival
Tory Politician (uncredited)
Ernest Blyth
Army Officer at Sports Day (uncredited)
John Bull
Ronalds (uncredited)
Peter Duguid
Doctor (uncredited)
Brian Hammond
Johnny Smith - Colin's Brother (uncredited)
William Ash Hammond
Johnny Smith - Colin's Brother (uncredited)
Aileen Lewis
Sports Day Spectator (uncredited)
Fred Machon
Borstal Master at Meeting (uncredited)
Anita Oliver
Alice Smith - Colin's Sister (uncredited)
Joe Phelps
Borstal Master in Workshop (uncredited)
Doug Robinson
Prison Warder (uncredited)
Robert Vossler
Plainclothes Policeman (uncredited)
John Wilder
Ranley Headmaster (uncredited)
Chris Williams
Ranley Boy (uncredited)