November 16, 2012 at 03:56 PM EST

Lucille Bliss, who provided the voices for the cartoon characters Smurfette, Crusader Rabbit, and Rags died of natural causes on Nov. 8 in Costa Mesa, Calif., the Los Angeles Times reports. She was 96.

The animation voice actress’ career spanned over 60 years; she was working as recently as last month. In addition to her groundbreaking double role in Crusader Rabbit (as the title character and Rags) and her most recognizable role in The Smurfs (as Smurfette), Bliss also gave voice to the stepsister Anastasia in Disney’s 1950 film Cinderella and the original Elroy in the 1960s TV series The Jetsons. Her smaller projects included The Flintstones and Star Wars spinoffs and video games.

“She was a pioneer in television animation,” author and animation historian Charles Solomon told the Los Angeles Times. “[Crusader Rabbit] really set a pattern for a lot of future shows — the smart little character and the big dumb sidekick.”

Bliss, who never married, has no immediate survivors. A memorial service will be held in her honor on Tuesday at 1:30 p.m. at Hollywood Forever Cemetery in Los Angeles.

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