About:
Marilyn Sue Schreffler (June 14, 1945 – January 7, 1988) was an American voice actress who provided voice-overs for several animated television series, mostly for Hanna-Barbera Productions. Description above from the Wikipedia article Marilyn Schreffler, licensed under CC-BY-SA, full list of contributors on Wikipedia.

• Known For
• 
  Scooby-Doo's Original Mysteries
  as
  (voice) (archive footage)
• 
  Yogi Bear and the Magical Flight of the Spruce Goose
  as
  Bernice (voice)
• 
  Starchaser: The Legend of Orin
  as
  (voice)
• 
  Scooby-Doo and the Ghoul School
  as
  Winnie Werewolf (voice)
• 
  Scooby-Doo's Spookiest Tales
  as
  (voice)