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.
Filmography
Scooby-Doo's Spookiest Tales2003 · (voice)
Scooby-Doo's Original Mysteries2000 · (voice) (archive footage)
Scooby-Doo and the Ghoul School1988 · Winnie Werewolf (voice)
Yogi Bear and the Magical Flight of the Spruce Goose1987 · Bernice (voice)
Fatal Attraction1987 · Party Guest
The Golden Child1986 · Kala (voice)
Heathcliff: The Movie1986 · Mr. Woodley's Secretary
Rose Petal Place: Real Friends1985 · (voice)
Starchaser: The Legend of Orin1985 · (voice)
Rose Petal Place1984 · Nastina
The Pink Panther in 'Pink at First Sight'1981 · (voice)
Yogi's First Christmas1980 · Snively Throckmorton (voice)
Scooby Goes Hollywood1979 · Cherie / Sis / Receptionist (voice)
Casper's Halloween Special1979 · Winifred the Witch (voice)
The Popeye Valentine Special: Sweethearts at Sea1979 · Olive Oyl / The Sea Hag (voice)