Cast of Prince of Darkness

Donald Pleasence portrays Vater Loomis, a priest who assists in confronting the malevolent force within the church.

Lisa Blount takes on the role of Catherine Danforth, a member of the research team who becomes involved in the battle against the supernatural entity.

Victor Wong plays Howard Birack, a physics professor who leads the investigation into the mysterious occurrences at the church.

Jameson Parker portrays Brian Marsh, a graduate student who assists in unraveling the sinister secrets lurking within the church.

Dennis Dun plays Walter, a member of the research team who experiences the disturbing events firsthand.

Susan Blanchard takes on the role of Kelly, a character who becomes entangled in the chilling events unfolding at the church.

Anne Marie Howard portrays Susan Cabot, a member of the research team who delves into the dark history of the malevolent entity.

Ann Yen plays Lisa, a character who becomes part of the group investigating the sinister forces at work within the church.

Ken Wright portrays Lomax, a member of the research team who assists in the fight against the ancient evil.

Dirk Blocker takes on the role of Mullins, a character who discovers the horrifying truth behind the sinister presence in the church.

Jessie Lawrence Ferguson plays Calder, a character who uncovers the ancient secrets that threaten the world.

Peter Jason portrays Dr. Paul Leahy, a key figure in the group of researchers striving to prevent the malevolent entity from escaping its prison.