A dedicated teacher tries to reach out to juvenile delinquent students at a London alternative school.
| Actor | Role |
|---|---|
 Glenda JacksonConor MacMichael | Conor MacMichael |
 Oliver ReedTerence Sutton | Terence Sutton |
 Michael MurphyMartin | Martin |
 Rosalind CashUna Ferrar | Una Ferrar |
 John StandingCharles Fairbrother | Charles Fairbrother |
| SSylvia O'DonnellMarie | Marie |
 Phil DanielsStewart | Stewart |
 Patrick MurrayBoysie | Boysie |
| SSharon FusseyBelinda | Belinda |
| RRiba AkabusiGaylord | Gaylord |
 Perry BensonTimmy | Timmy |
 Herbert NorvilleRonnie | Ronnie |
| OOwen WhittakerVictor | Victor |
| DDanielle CorganTina | Tina |
| AAngela BroganFrieda | Frieda |
| DDayton BrownJohn | John |
| PPaul DalyNick | Nick |
 Victor Romero EvansAbel | Abel |
 Deirdre ForrestDeirdre | Deirdre |
| SSimon HoweRob | Rob |
| TTony LondonAdam | Adam |
| SStephanie PattersonPattie | Pattie |
| PPeta BernardMabel | Mabel |
| JJudy WilesMiss Eccles | Miss Eccles |
 Patsy ByrneMrs. Green | Mrs. Green |
| CChristopher GuineeMr. Drake | Mr. Drake |
| IIan ThompsonMr. Bowden | Mr. Bowden |
 Mavis PughMrs. Barnett | Mrs. Barnett |
 Constantine GregoryMaj. Brady | Maj. Brady |
 Sylvia MarriottMrs. Wickens | Mrs. Wickens |