High Quality Content by WIKIPEDIA articles! Lilith Sternin, M.D., Ph.D., Ed.D., A.P.A. is a character played by Bebe Neuwirth on the American sitcom Cheers, which spans the course of her marriage to Frasier Crane, and its spinoff series Frasier, during which she made regular appearances as Frasier`s ex-wife and the mother of their son Frederick.