| Cast list | | Ian McKellen | as | Walter | | Sarah Miles | as | June | | Debby Bishop | as | Black Nurse | | Jim Broadbent | as | Orderly | | Frankie Connolly | as | Young Walter | | Tony Doyle | as | Clive | | John Gordon Sinclair | as | Graham | | Christine Hargreaves | as | Rita | | Barbara Jefford | as | Walter's mother | | Gary Olsen | as | Shower Room Attendant | | Tim Potter | as | Squatter's Advisor | | Trevor Ray | as | POA Officer | | Katherine Schofield | as | Carole | | Nabil Shaban | as | Ben Gunn | | Paula Tilbrook | as | Mrs. Ashby | | Arthur Whybrow | as | Walter's father | | Rowan Wylie | as | White Nurse | | Marjorie Yates | as | Social Worker |
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