Mitchell Steven Williams (born November 17, 1964), nicknamed "Wild Thing", is a former relief pitcher in Major League Baseball who played for six teams from 1986 to 1997. He was also a studio analyst for the MLB Network from 2009 to 2014.
Williams, a left-hander with a high-90s fastball and major control issues, was largely effective, especially in the early part of his career earning 192 saves in his 11 seasons including a career high of 43 in 1993. He is best known for giving up a walk-off home run to Joe Carter of the Toronto Blue Jays in the sixth game of the 1993 World Series, which gave Toronto a World Series championship over the Phillies. Williams' career went into immediate and noticeable decline afterward, although he played in parts of three more major league seasons.
He is also known as Mitchell Steven Williams.