William Christopher Carter (born September 16, 1982), nicknamed "Animal", is an American former Major League Baseball outfielder who played for the Boston Red Sox and New York Mets between 2008 and 2010.

He hit for a batting average of .571 and led the league in home runs as a senior, and was named his team's MVP.

He also was named a 2001 Preseason First Team All-American by Baseball America and Bay Valley Athletic League MVP in 2001.

With the Red Sox facing a possible Crisp suspension and injuries to both Jacoby Ellsbury and Manny Ramírez, Carter was sent back to Pawtucket on June 6 in favor of Brandon Moss.

[citation needed] Carter was traded to the New York Mets as a player to be named later in the deal for Billy Wagner, and was then added to the 40-man roster.

[13] During spring training, Carter was given the nickname "The Animal" by Mets manager Jerry Manuel for his relentless drive and work ethic.

[15] On May 11, 2010, his first at-bat as a Met, in the bottom of the eighth inning, he hit a double that drove in the winning run against the Washington Nationals.

On June 11, 2010, Carter hit his first major league home run against Baltimore Orioles pitcher Jeremy Guthrie as the designated hitter.