Sean Mulligan debuted on September 1, 1996, playing for the at ; he played his final game on September 6, 1996, playing for the at .
NFL player Matthew Mulligan played for Maine.
John Mulligan debuted on June 14, 1884, playing for the Washington Nationals at ; he played his final game on June 14, 1884, playing for the Washington Nationals at .
Sean Burnett debuted on May 30, 2004 and played his final game on May 26, 2013.
Sean Casey debuted on September 12, 1997 and played his final game on September 28, 2008.
Sean Barker debuted on June 6, 2007 and played his final game on June 15, 2007.
Sean Bergman debuted on July 7, 1993 and played his final game on June 17, 2000.
Sean DePaula debuted on August 31, 1999 and played his final game on August 1, 2002.
Sean Douglass debuted on July 18, 2001 and played his final game on September 28, 2005.
Sean Doolittle debuted on June 5, 2012 and played his final game on September 27, 2013.
Dick Mulligan debuted on September 24, 1941, playing for the Washington Senators at Griffith Stadium I; he played his final game on May 4, 1947, playing for the Boston Braves at Braves Field.
Eddie Mulligan debuted on September 23, 1915, playing for the Chicago Cubs at West Side Park II; he played his final game on August 20, 1928, playing for the Pittsburgh Pirates at Forbes Field.
NFL player Sean Hooey played for Cincinnati.