Marilyn Schreffler
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
Airwolf
Newhart
Simon & Simon
Scooby-Doo and Scrappy-Doo
Scooby's All-Stars
The All-New Popeye Hour
The Flintstone Kids
Fatal Attraction
The Golden Child
Popeye and Son
Captain Caveman and the Teen Angels
Pole Position
Fred and Barney Meet The Thing
Scooby-Doo and the Ghoul School
Yogi's Space Race
Starchaser: The Legend of Orin
Scooby Goes Hollywood
Buford and the Galloping Ghost
Yogi Bear and the Magical Flight of the Spruce Goose
Scooby-Doo's Original Mysteries
Heathcliff: The Movie
No Image
Rose Petal Place
Scooby-Doo's Spookiest Tales
Yogi's First Christmas
Casper's Halloween Special
The Pink Panther in 'Pink at First Sight'
Rose Petal Place: Real Friends
The Popeye Valentine Special: Sweethearts at Sea