Susan Sullivan is an American actress best known for her television roles as Lenore Curtin Delaney on Another World (1971-1976), as Maggie Gioberti Channing in Falcon Crest (1981-1989) and as Thomas Gibson's snobbish mother, Katherine Kitty Montgomery, on Dharma & Greg, from 1997-2002.
She also co-starredf as former Broadway actress Martha Rodgers in the television drama series Castle.
Two-time Emmy and Golden Globe nominee Susan Sullivan is well known to television audiences for her starring roles in the long running hits Dharma & Greg and Falcon Crest. She has also made numerous guest appearances, including Two and a Half Men, The Nine and Judging Amy.
Born in New York, Sullivan attended Hofstra University on a drama scholarship. On Broadway she starred in Jimmy Shine, opposite Dustin Hoffman, and in The Beauty Part. Off Broadway she played the leads in The Fourth Wall and Buffalo Gal. She toured with the L.A. Theatre Works production of The Pentagon Papers.
Her extensive list of regional theatre credits includes Fifth of July at the Mark Taper Forum and the National Touring Company's production of Uncle Vanya, as well as The Three Sisters.
She also appeared in Twelfth Night, Macbeth and The Winter's Tale for PBS. She is a member of both the Matrix and Antaeus Theatre companies in Los Angeles.
In addition to her series roles, Sullivan has starred in numerous features and made-for-television movies, including My Best Friend's Wedding, The Incredible Hulk, Midway, A Perfect Stranger and Rich Man, Poor Man.
A founding member of the Celebrity Action Council at the Los Angeles Mission, Sullivan has served on the Board of the Felice Foundation and been a spokesperson for the National Hospice Foundation and Save the Children.
Sullivan is bi-coastal and shares her life with noted psychologist and author Dr. Connell Cowan and a couple of finicky feline friends.