Anthony Hopkins
— Cassius / Angus Barrie
Rebecca Pidgeon
— Nancy Gulliver
Jean Simmons
— Aunt Mary
Trevor Howard
— Grandfather
Tara MacGowran
— Maeve
Hugh Grant
— Harry
Ronnie Masterson
— Bridie
John Rogan
— Mr. Carroll
Joan O'Hara
— Maurya
Charmian May
— Celia Brabazon
Ann Way
— George Brabazon
Mark O'Regan
— Joe Mulhare
Brendan Laird
— Tommy Roche
Adrian Dunbar
— Capt. Rankin
Geoffrey Greenhill
— Cpl. Tweedie