Mills joined the cast of The Bold and the Beautiful as Pamela Douglas, the estranged sister of Stephanie Douglas Forrester, in December 2006. She was put under contract, but after making only a handful of appearances, her character went insane, was confined to a mental hospital, and then disappeared from the show in March 2007. Mills reprised the role on recurring status in 2007 and 2008 and has been added to the opening credits as a contract player as of December 2008. In November 2019, it was reported that Mills was now off contract with the show.

Mills’s husband was film, television, stage actor, and author Orson Bean. Bean was well known for being a long-term celebrity panelist of To Tell the Truth and Match Game. Mills (who is 23 years his junior) was Bean’s third wife, and they were married from 1993 until his death in 2020.