Melissa Joan Hart (b. 1976) is an American actress best known for her television series Clarissa Explains It All and Sabrina the Teenage Witch.
Joan Hart appeared with Red Fraggle at the Jim Henson Company's Fraggle Rock Holiday Toy Drive Benefit event at Kitson in West Hollywood on December 9, 2009. (YouTube)
Other credits include guest spots on Law & Order: SVU, Boy Meets World and That '70s Show, voice-over work on Batman Beyond: Return of the Joker, Robot Chicken and Superman: The Animated Series, and competing in season 9 of Dancing with the Stars.