Alex Kellner debuted on April 29, 1948, playing for the Philadelphia Athletics at Shibe Park; he played his final game on June 23, 1959, playing for the St. Louis Cardinals at Sportsman's Park IV.
Alex Kellner played in 18 games at pitcher for the Cincinnati Redlegs in 1958, starting in 7 of them. He played for a total of 246 outs, equivalent to 9.11 9-inning games. He made 3 putouts, had 6 assists, and committed no errors, equivalent to 0 errors per 9-inning game. He had one double play.
Alex Kellner played in 7 games at pitcher for the Kansas City Athletics in 1958, starting in 6 of them. He played for a total of 101 outs, equivalent to 3.74 9-inning games. He made 2 putouts, had 5 assists, and committed no errors, equivalent to 0 errors per 9-inning game. He had one double play.
Walt Kellner debuted on September 6, 1952, playing for the Philadelphia Athletics at Shibe Park; he played his final game on September 11, 1953, playing for the Philadelphia Athletics at Connie Mack 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.