| Cast list | | Anthony Hopkins | as | Roger Quaife | | Shaughan Seymour | as | Lewis Eliot | | Terence Alexander | as | R.S. Robinson | | Gillian Bailey | as | Olive Calvert | | George Balentine | as | March's butler (as George Ballantine) | | Christina Barryk | as | Nurse McGregor | | Morris Barry | as | British Academy chairman | | Peter Bourke | as | Williams | | Susie Brann | as | Nurse Cartwright | | Tony Britton | as | Lord Boscastle | | Bernard Brown | as | Drawbell | | Robert Burbage | as | Charles Eliot | | Anna Calder-Marshall | as | Ellan Smith | | Ursula Camm | as | Leicester landlady | | John Carson | as | Jago | | Peter Cartwright | as | Horace Leverett-Smith | | Shirley Cassedy | as | Rosalind Wykes | | Christopher Casson | as | Austin Davidson | | Tom Chadbon | as | Sir Douglas Osbaldiston | | Geoffrey Chater | as | Thomas Bevill | | Michael Cochrane | as | Sammikins | | Jeremy Coote | as | Student | | Peter Copley | as | Despard-Smith | | James Cossins | as | Mr. Knight | | Andrew Cruickshank | as | M.H.L. Gay | | Alan Downer | as | Rudd | | Saskia Downes | as | Cindy | | Carmen du Sautoy | as | Ann Simon / March | | Geoffrey Edwards | as | 2nd Judge | | James Faulkner | as | Christopher Mansel | | Susan Fleetwood | as | Lady Caroline Quaife | | Eric Francis | as | College porter | | John Graham | as | Whitman | | Gawn Grainger | as | Dr. Pearson | | Sheila Grant | as | Alice Jago | | Joan Greenwood | as | Lady Boscastle | | John Grillo | as | Arthur Brown | | Tony Hammond | as | Charles Eliot | | Edward Hardwicke | as | Sir Hector Rose | | Paul Hastings | as | Francis Getliffe | | Nigel Havers | as | Roy Calvert | | Richard Heffer | as | Geoffrey Hollis | | Eileen Helsby | as | Mrs. Eden | | Bernard Horsfall | as | Dr. Bradbury | | Emma Jacobs | as | Katherine March / Getliffe | | Martyn Jacobs | as | Charles March | | Stephen Jenn | as | Humphrey Seymour | | Noel Johnson | as | 1st Judge | | Phyllida Law | as | Mrs. Henneker | | Nigel Leach | as | Erick Sawbridge | | Cyril Luckham | as | Eustace Pilbrow | | Cherie Lunghi | as | Margaret Davidson / Eliot | | Alan MacNaughton | as | Winslow | | Alec Mango | as | Professor Brodzinski | | Peter Marinker | as | David Rubin | | Michael Mellinger | as | Henriques | | Buster Merryfield | as | Bishop | | Kieran Montague | as | Kurt Puchwein | | Hugh Moxey | as | Speaker of the House of Commons | | John Normington | as | Monty Cave | | Simon Oates | as | Major Darling | | Tessa Peake-Jones | as | Irene Eliot | | Ann Pennington | as | Mary Pearson | | Michael Percival | as | Gilbert Cooke | | John Phillips | as | Reggie Collingwood | | Emma Piper | as | Helen | | Kathryn Pogson | as | Joan Royce | | John Quentin | as | Nightingale | | Maurice Quick | as | Preston | | John Richmond | as | Waiter | | Stephen Riddle | as | Martin Eliot | | Vivienne Ritchie | as | Nora Luke | | Ivor Roberts | as | Mr. Eden | | Struan Rodger | as | Dr. Schader | | Clifford Rose | as | Crawford | | Sheila Ruskin | as | Sheila Knight / Eliot | | Peter Sallis | as | Leonard March | | Jeffrey Segal | as | Professor Siegel | | James Simmons | as | Walter Luke | | James Snell | as | Anaesthetist | | Elizabeth Spriggs | as | Lady Muriel Royce | | Neil Stacy | as | Herbert Getliffe | | Sarah Stephenson | as | Hanna Puchwein | | Elizabeth Stewart | as | Mrs. Wilson | | Christopher Strauli | as | Father Ailwyn | | Gareth Thomas | as | Arthur Mounteney | | Geoffrey Toone | as | Sir Oulstone Lyall | | Frederick Treves | as | Vernon Royce | | Michael Troughton | as | Jack Cotery | | Ruth Trouncer | as | Mrs. Knight | | William Whymper | as | Dr. Tom Devitt | | Jeffrey Wickham | as | Chrystal | | Tom Wilkinson | as | George Passant | | Paul Williamson | as | Trafford | | Peggy Ann Wood | as | Mrs. Doris Seymour | | Edgar Wreford | as | Sir Philip March | | Tim Wylton | as | Percy Hall |
| | Crew list: | | Jeremy Summers (Director) | | Ronald Wilson (Director) | | Julian Bond (Writer) | | C.P. Snow (Writer) |
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