McGowan joined Charmed in the beginning of it's fourth season as Paige Matthews, replacing the departing Shannen Doherty. McGowan joined show originals Holly Marie Combs and Alyssa Milano for the rest of the show's run.
After finishing Charmed, McGowan tried various projects in both film and music though nothing panned out. Since late 2010 however McGowan started to neglect her muscle strengthening and conditioning resulting not in added weight gain but quiet, yet nagging rumors her slowly sliding to immobility.
Although she is a reported 615 pounds, McGowan's state of mobility is very precarious.