After starring as brainy Ren Stevens for three years on Even Stevens, bringing the titular Kim Possible to life, and starring opposite Hilary Duff in the 2002 DCOM Cadet Kelly, Christy Carlson Romano took to Broadway for a 31-week run in Disney's Beauty and the Beast in 2004, playing Belle, before returning to the famed theater district in 2008, joining the company of Avenue Q.

She wrote a novel, Grace's Turn, in 2007, directed a feature film, Christmas All Over Again, in 2016, earned a degree in Film Studies from Barnard College, and married writer-producer Brendan Rooney on December 31, 2013. The couple have two daughters, the youngest born in February 2019.

Christy returned to the network that made her a household name in 2019 with a role in the live-action Kim Possible film, playing pop star Poppy Blu. In May 2019, she also opened up about the difficulties she faced coming out of her years as the network's star in a powerful essay for Teen Vogue. "I have never been perfect or pulled together as my reputation or the success of my young adulthood might suggest," she confessed. "During a period of time in my life, I grappled with depression, drinking, and more, desperate to find fixes for how I felt."