Michael Gough as Alexander Yorke

Martin Potter as Stephen Yorke

Candace Glendenning as Catherine Yorke

Barbara Kellerman as Frances

Michael Craze as John

Gloria Maley as Janice

James Bree as Malcolm Yorke

Celia Hewitt as Elizabeth Yorke

David McGillivray as Priest

Monika Ringwald as Camilla (uncredited)

Sandy Bailey as Camilla Yorke (uncredited)

Robert Conway as Puritan with Whip (uncredited)

Richard Crafter as Mad Monk 2 (uncredited)

Nick Maley as Mad Monk 1 (uncredited)

Paula Patterson as Woman Disemboweled by Stephen (uncredited)

Moira Young as Alexander's Wife in Prologue (uncredited)