Lilith Sternin, M.D., Ph.D., Ed.D, A.P.A. is a fictional character on the American television sitcoms Cheers and Frasier, portrayed by Bebe Neuwirth. The character first appears as a date for Frasier Crane, though mutual hostility and discomfort causes the evening to end badly. Several months later, Lilith meets Frasier again and, with some help from Frasier's ex-fiancée, Diane Chambers, they start a romantic relationship, eventually living together, marrying, and having a son, Frederick.