Marc Ronan debuted on September 21, 1993, playing for the St. Louis Cardinals at Busch Stadium II; he played his final game on October 3, 1993, playing for the St. Louis Cardinals at Busch Stadium II.
Marc Campbell debuted on September 30, 1907 and played his final game on October 1, 1907.
NFL player Marc Mariani played for Montana.
NFL player Marc Anthony played for California.
YES Marc is wrong
Marc Newfield debuted on July 6, 1993, playing for the Seattle Mariners at Kingdome; he played his final game on September 15, 1998, playing for the Milwaukee Brewers at County Stadium.
Marc Campbell debuted on September 30, 1907, playing for the Pittsburgh Pirates at Exposition Park; he played his final game on October 1, 1907, playing for the Pittsburgh Pirates at Exposition Park.
Marc Sagmoen debuted on April 15, 1997, playing for the Texas Rangers at The Ballpark at Arlington; he played his final game on September 20, 1997, playing for the Texas Rangers at The Ballpark at Arlington.
Marc Pisciotta debuted on June 30, 1997, playing for the Chicago Cubs at Wrigley Field; he played his final game on July 7, 1999, playing for the Kansas City Royals at Kauffman Stadium.
Marc Rzepczynski debuted on July 7, 2009, playing for the Toronto Blue Jays at Rogers Centre; he played his final game on September 29, 2013, playing for the Cleveland Indians at Progressive Field.
Marc Valdes debuted on August 28, 1995, playing for the Florida Marlins at Joe Robbie Stadium; he played his final game on June 22, 2001, playing for the Atlanta Braves at Turner Field.
Marc Wilkins debuted on May 11, 1996, playing for the Pittsburgh Pirates at Three Rivers Stadium; he played his final game on August 29, 2001, playing for the Pittsburgh Pirates at PNC Park.
Marc Hall debuted on August 20, 1910, playing for the St. Louis Browns at Sportsman's Park IV; he played his final game on July 29, 1914, playing for the Detroit Tigers at Navin Field.