Principal Cast
Donald Pleasence
as Vater Loomis
Lisa Blount
as Catherine Danforth
Victor Wong
as Howard Birack
Jameson Parker
as Brian Marsh
Dennis Dun
as Walter
Susan Blanchard
as Kelly
Anne Marie Howard
as Susan Cabot
Ann Yen
as Lisa
Ken Wright
as Lomax
Dirk Blocker
as Mullins
Jessie Lawrence Ferguson
as Calder
Peter Jason
as Dr. Paul Leahy
Robert Grasmere
as Frank Wyndham
Thom Bray
as Etchinson
Joanna Merlin
as Bag Lady
Alice Cooper
as Street Schizo
Betty Ramey
as Nun
Jessie Ferguson
as Dark Figure
