Jean Vander Pyl

Jean Vander Pyl (October 11, 1919 – April 10, 1999) was an American actress on radio, television and movies. Although her career spanned many decades, she is best remembered as the voice of Wilma Flintstone for the Hanna-Barbera cartoon "The Flintstones". She also provided the voice for Pebbles Flintstone. 
She also provided the of voice of Rosie the robot maid from the animated series "The Jetsons", among many others, such as Fifi and additional voices in "Top Cat" and Winsome Witch on "The Secret Squirrel Show".