Ryan Roberts debuted on July 30, 2006, playing for the Toronto Blue Jays at Rogers Centre; he played his final game on August 14, 2013, playing for the Tampa Bay Rays at Tropicana Field.
Ryan Brasier debuted on May 2, 2013 and played his final game on September 27, 2013.
Ryan Drese debuted on July 29, 2001 and played his final game on April 14, 2006.
Red Roberts debuted on September 3, 1943, playing for the Washington Senators at Griffith Stadium I; he played his final game on October 3, 1943, playing for the Washington Senators at Griffith Stadium I.
Leon Roberts debuted on September 3, 1974, playing for the Detroit Tigers at Tiger Stadium; he played his final game on September 30, 1984, playing for the Kansas City Royals at Royals Stadium.
Dave Roberts debuted on September 5, 1962, playing for the Houston Colt .45's at Colt Stadium; he played his final game on May 11, 1966, playing for the Pittsburgh Pirates at Forbes Field.
Ryan Roberts played in just one game at designated hitter for the Toronto Blue Jays in 2006 and did not start. , equivalent to 0 errors per game (estimate based on total games played in).
NBA player Brian Roberts played for Dayton.
NFL player Andre Roberts played for The Citadel.
Ryan Adams debuted on May 20, 2011 and played his final game on September 19, 2011.
Ryan Bowen debuted on July 22, 1991 and played his final game on October 1, 1995.
Ryan Brasier debuted on May 2, 2013 and played his final game on September 27, 2013.
Ryan Budde debuted on July 31, 2007 and played his final game on May 12, 2010.
Ryan Bukvich debuted on July 12, 2002 and played his final game on July 4, 2008.
Ryan Christenson debuted on April 20, 1998 and played his final game on September 28, 2003.
Ryan Church debuted on August 21, 2004 and played his final game on October 2, 2010.
Ryan Cook debuted on July 20, 2011 and played his final game on September 29, 2013.
Ryan Dempster debuted on May 23, 1998 and played his final game on September 29, 2013.