She started at four, selling bathtub toys on TV. By fifteen she was Clarissa Darling on Nickelodeon, a character who talked directly to the camera and kept a pet alligator in her bedroom. The fourth-wall breaks and Clarissa's deadpan delivery turned Hart into the defining '90s tween. She dropped out of NYU to take Sabrina the Teenage Witch, which ran seven seasons and made her a primetime franchise. She wasn't just the star. She was also executive producer.
After Melissa & Joey wrapped in 2015, Hart repositioned herself as a producer-director rather than wait for roles. She directs episodes of Young Sheldon and The Goldbergs. Her production company Hartbreak Films keeps her in Lifetime thrillers. The Netflix holiday film A Merry Little Ex-Mas alongside Alicia Silverstone marked a step up in visibility. She won $1 million on Celebrity Wheel of Fortune in 2021 for charity. She stopped waiting to be cast and started building infrastructure instead.
Her husband Mark Wilkerson reportedly stepped back from touring with his band Course of Nature around 2008. He has said he missed too many bath times. He's been the stay-at-home parent since. She's been the breadwinner. She's also named after the Allman Brothers song, and her commercial earnings as a child went to the family. The nostalgia is nice, but Hart has been working since she was four.