Alex Pelaez debuted on May 16, 2002, playing for the San Diego Padres at Qualcomm Stadium; he played his final game on May 18, 2002, playing for the San Diego Padres at Qualcomm Stadium.
Alex Arias debuted on May 12, 1992 and played his final game on September 22, 2002.
Alex Avila debuted on August 6, 2009 and played his final game on September 29, 2013.
Alex Beam debuted on May 25, 1889 and played his final game on May 29, 1889.
Alex Burnett debuted on April 8, 2010 and played his final game on May 29, 2013.
Alex Cabrera debuted on June 26, 2000 and played his final game on September 30, 2000.
Alex Carrasquel debuted on April 23, 1939 and played his final game on July 26, 1949.
Alex Castellanos debuted on May 31, 2012 and played his final game on September 29, 2013.
Alex Cintron debuted on July 24, 2001 and played his final game on May 19, 2009.
Alex Cobb debuted on May 1, 2011 and played his final game on September 26, 2013.
Alex Cole debuted on July 27, 1990 and played his final game on May 22, 1996.
Alex Colome debuted on May 30, 2013 and played his final game on June 28, 2013.
Alex Delgado debuted on April 4, 1996 and played his final game on July 12, 1996.