Michael James "Mike" Doonesbury is the main character in
Garry Trudeau's
comic strip Doonesbury. He started out as a nerdish freshman from
Tulsa at the fictional
Walden College, and shared a dorm room with
B.D. Currently he is married to
Kim Rosenthal, and divorced from
J.J. Caucus. Mike's daughter, Alex continued to live with Mike and Kim, until she left to attend MIT. He has a younger brother, Benjamin (who during some time as a punk rocker was known as "Sal Putrid"), and a widowed mother who died in late 2010.