The Young and the Restless
With the success of another iconic character, Kimberlin Brown's Sheila Carter, Bell successfully crossed her over from "The Young and the Restless" to his second soap, "The Bold and the Beautiful", in 1992. The success of the crossover was due to the creativity of Bell, as the nefarious character of Sheila was presumed to have died in a fire on "The Young and the Restless".
Sheila Carter
In 2010, Sarah Smythe, Sheila Carter's sister, arrives in town. Having herself had plastic surgery to resemble Lauren, Sarah holds both Phyllis and Lauren responsible for her sister's death. Sarah devises a plan with Daisy Carter and Ryder Callahan, Sheila's twins with Tom Fisher, to take over Lauren's life and riches. The plan fails, with Lauren shooting and killing Sarah in self-defense to Sarah's attempt to fire her gun at Phyllis. In 2012, a woman claiming to be Daisy's mother checks her out of a mental institution, signing the name "Sheila Carter" on the release form. Michael has said signature analyzed to see if it fits Sheila's handwriting, and results turn out to be inconclusive.