About:
Marian Waldman (December 16, 1924 – July 5, 1985) was a Canadian actress, best known for her memorable role in Black Christmas (1974) where played foul-mouthed drunken housemother Mrs. MacHenry.

• Known For
• 
  When Michael Calls
  as
  Elsa Britton
• 
  Black Christmas
  as
  Mrs. Mac
• 
  Deranged
  as
  Maureen Selby
• 
  Black Christmas Legacy
  as
  Mrs. Mac (archive footage) (uncredited)
• 
  Class of '44
  as
  Grade Advisor