Exorcist II: The Heretic with the idea of directing a sequel, explaining that "every film has to struggle to find a connection with its audience. Here I saw the chance to make an extremely ambitious film without having to spend the time developing this connection. I could make assumptions and then take the audience on a very adventurous cinematic journey." Linda Blair agreed to reprise her role of Regan MacNeil for "Exorcist II", but refused to wear demon make-up (a double was used for the brief flashback scenes depicting a demonic Regan). Max von Sydow was persuaded by Boorman to reprise the role of
The Exorcist (film) stuntman jerked her around using a special effects cable during the scene when Regan slaps her mother. According to the documentary "Fear of God: The Making of the Exorcist", the injury did not cause permanent damage, although Burstyn was upset the shot of her screaming in pain was used in the film. After Father William O'Malley confirmed to Friedkin that he trusted the director, Friedkin slapped him hard across the face to generate a deeply solemn reaction for the last rites scene; this offended the many Catholic crew members on the set. He also fired blanks without warning on the