Animation
In television animation, she provided the voice of Judy Jetson in all versions of the Hanna-Barbera television cartoon The Jetsons, except in the movie version where her voice track was wiped so that the role could be played by Tiffany. Waldo is the last surviving main cast member of The Jetsons series.
Waldo also provided voices for Nancy (Shazzan), Granny Sweet (The Atom Ant/Secret Squirrel Show), Josie (Josie and the Pussycats), Penelope Pitstop (Wacky Races, The Perils of Penelope Pitstop) and a guest starring role in Thundarr the Barbarian as the witch, Sersi in the episode, Island of The Body Snatchers. Further guest starring roles were in The Headless Horseman of Halloween as a descendant of Ichabod Crane, in an episode from the Scooby-Doo series in 1976. In 1977 she provided the lead guest voice in an episode entitled To Switch a Witch which paid a somewhat out of left field homage to the witches of Salem. She and Gary Owens are the only surviving cast members of The Perils of Penelope Pitstop. She did the voices of Morticia Addams in the short-lived 1973 cartoon series adaptation of The Addams Family. She was also the voice of Princess in Battle of the Planets.
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