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Two beloved cartoon veterans have passed away, according to The Associated Press. Actress Norma MacMillan — best known for supplying the voices of Gumby and Casper the Friendly Ghost — has died at 79 of cardiac arrest. She is survived by her producer-husband Thor Arngrim and children Stefan and Alison Arngrim, who played Nellie Oleson on Little House on the Prairie. And animator William Hanna, who co-created such classics as The Flintstones, The Jetsons and Scooby Doo along with partner Joseph Barbera, has died at 90.
Two beloved cartoon veterans have passed away, according to The Associated Press. Actress Norma MacMillan — best known for supplying the voices of Gumby and Casper the Friendly Ghost — has died at 79 of cardiac arrest. She is survived by her producer-husband Thor Arngrim and children Stefan and Alison Arngrim, who played Nellie Oleson on Little House on the Prairie. And animator William Hanna, who co-created such classics as The Flintstones, The Jetsons and Scooby Doo along with partner Joseph Barbera, has died at 90.