In autumn 2016, Ruck began a 10-episode run on "The Exorcist" as Henry Rance, the husband (who has suffered mild brain damage in a vaguely explained accident) of Angela Rance (Geena Davis), better known as the adult Regan MacNeil, the tortured girl (played by Linda Blair) who is possessed by a demon in the 1973 hit film "The Exorcist". This Fox TV adaptation is "inspired by" the 1971 William Peter Blatty best-selling novel. In this update, the demon that tortured Regan/Angela as a girl did not die as it did at the end of the feature film, and it now inhabits one of Angela and Henry's daughters. Once again, they must turn to exorcism-practicing priests (Alfonso Herrera and Ben Daniels) for help. Regan/Angela's mother, Chris MacNeil (played by recurring guest star Sharon Gless and Ellen Burstyn in the feature film), is welcomed by the rest of the family but utterly scorned by her own daughter.