Jane Moore Sibbett (born November 28, 1962) is an American actress and comedian. Her most notable roles include Heddy Newman on the Fox television series Herman's Head, and as Ross Geller's first former wife, Carol Willick, on the NBC sitcom Friends.
Sibbett was born in Berkeley, California, the youngest of five children. She was raised on Alameda Island, in the San Francisco Bay. She is a graduate of the University of California, Los Angeles, where she became a member of the California Delta chapter of Pi Beta Phi, an international women's fraternity.
Sibbett started her acting career as Jane Wilson on the NBC soap opera Santa Barbara in 1986-87, for which she was nominated for a Best Newcomer Soap Opera Digest Awards. In 1989, she won the role of Laurie Parr on the CBS comedy The Famous Teddy Z, co-starring with Jon Cryer and Alex Rocco. The series lasted one season. In 1991, Sibbett was cast as status-conscious bombshell Heddy Newman on the Fox sitcom Herman's Head, which quickly gained a cult following on the young broadcast network and lasted three seasons. Beginning in 1994, she played the occasional role of Carol Willick on Friends, a part-time stint that lasted until the end of the show's seventh season in 2001. During her Friends association, Sibbett had regular roles on the short-lived CBS sitcom If Not for You (1995), playing the jilted fiancée of her former Herman's Head co-star Hank Azaria, and in the second season of The WB's Nick Freno: Licensed Teacher (1997–98), playing school headmaster Dr. Katherine Emerson.