Mary Claire "Mimi" Kennedy (born September 25, 1948) is an American actress, author, and activist. Best known for her roles in television sitcoms, Kennedy co-starred in numerous short-lived sitcoms before her role as Ruth Sloan on Homefront (1991–93). She received wider recognition with her roles in the Chuck Lorre created sitcoms; Dharma & Greg (1997–2002), and Mom (2013–2021). For her performance in the latter, Kennedy received a nomination for the Critics' Choice Television Award for Best Gue...