A comic actress who also has excelled as steely, somewhat brittle women in dramas, Mimi Kennedy has been through the network TV wars, appearing in numerous short-lived series while building a reputation as a fine performer. She first won notice playing Jan in the Broadway musical "Grease" and by 1977 joined Debbie Allen and Ellen Foley as "Three Girls Three" (NBC), a critically-praised but short-lived program which was part variety, part sitcom. But it started Kennedy on the series path. She appeared in a supporting role in "Stockard Channing in Just Friends" (CBS, 1979) and was a regular on
