Kennedy has also appeared in various films, including Pump Up the Volume (1990), Erin Brockovich (2000), In the Loop (2009), Due Date (2010), Midnight in Paris (2011) and The Five-Year Engagement (2012).

[2][3] She got her start in theater with the Rochester Community Players, appearing in Agatha Christie's Spider Web in October 1960 when she was 12 years old.

[4][5] She appeared in the Broadway musical Grease and in 1977 landed a part in the short-lived variety series 3 Girls 3, with Debbie Allen and Ellen Foley.

During the 2000s, Kennedy had many guest-starring roles on television, appearing on Grey's Anatomy, House, ER, Scandal, In Plain Sight, Drop Dead Diva and Veep.

She also had a number of supporting film roles, appearing in Man in the Chair, In the Loop, Due Date, Midnight in Paris and The Five-Year Engagement.

[9] Early in 2022, Kennedy posted a video in which she and spouse Larry Dilg recall their friendships with Jim Steinman and, by extension, with Meatloaf.