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