 Peter O'TooleArthur Chipping | Arthur Chipping |
 Petula ClarkKatherine Bridges | Katherine Bridges |
 Michael RedgraveThe Headmaster | The Headmaster |
 George BakerLord Sutterwick | Lord Sutterwick |
 Siân PhillipsUrsula Mossbank | Ursula Mossbank |
 Michael BryantMax Staefel | Max Staefel |
 Jack HedleyWilliam Baxter | William Baxter |
 Alison LeggattHeadmaster's Wife | Headmaster's Wife |
 Jenny RunacreNot listed | Not listed |
 Clinton GreynBill Calbury | Bill Calbury |
 Barbara CouperMrs. Paunceforth | Mrs. Paunceforth |
 Michael CulverJohnny Longbridge | Johnny Longbridge |
| EElspeth MarchMrs. Summerswaithe | Mrs. Summerswaithe |
 Clive MortonGeneral Paunceforth | General Paunceforth |
 Ronnie StevensAlgie | Algie |
 Mario MaranzanaPompeii Guide | Pompeii Guide |
| JJohn GugolkaSutterwick Jr. | Sutterwick Jr. |
| MMichael RidgewayDavid | David |
 Tom OwenFarley | Farley |
| MMichael AudresonSchoolboy (uncredited) | Schoolboy (uncredited) |
 Julian BarnesSchoolboy (uncredited) | Schoolboy (uncredited) |
| PPierre BedenesSchoolboy (singing voice) (uncredited) | Schoolboy (singing voice) (uncredited) |
 Gillian BlakeGirl at Party (uncredited) | Girl at Party (uncredited) |
| LLeo BrittElder Master (uncredited) | Elder Master (uncredited) |
 Nicholas FrankauTardy Student (uncredited) | Tardy Student (uncredited) |
 Gary GrahamSchoolboy (uncredited) | Schoolboy (uncredited) |
 Elspet GrayLady Sutterwick (uncredited) | Lady Sutterwick (uncredited) |
 Patricia HayesMiss Honeybun (uncredited) | Miss Honeybun (uncredited) |
| MMark Danvers HeronSchoolboy (uncredited) | Schoolboy (uncredited) |
 Barbara KnoxDancer (uncredited) | Dancer (uncredited) |
