HIMYM recruits Pretty Little Liars actress Ashley Benson, TV Line has learned exclusively. Benson will play an unconventional love interest for Barney in the Jan. 21st episode.
Additionally, there had been rumors of Rachel Bilson's character returning on the season 8 installment. According to reports, a rep from the series would neither confirm or deny Cindy's (Bilson) comeback but a showrunner recently teased a statement on TV Guide saying that Ted will run into someone from his past who will have a “big influence on his search for the mother.”
In season 6, Bilson appeared as Cindy, the roommate of Ted's future bride. She flirted with Ted but was later revealed that she was a lesbian.