John Bateman debuted on April 19, 1963 and played his final game on October 3, 1972.
John Baker debuted on July 9, 2008 and played his final game on May 21, 2013.
John Boozer debuted on July 22, 1962 and played his final game on October 1, 1969.
John Briggs debuted on April 17, 1956 and played his final game on September 4, 1960.
John Briscoe debuted on April 18, 1991 and played his final game on May 21, 1996.
John Burke debuted on June 27, 1902 and played his final game on July 15, 1902.
John Bateman debuted on April 19, 1963, playing for the Houston Colt .45's at Colt Stadium; he played his final game on October 3, 1972, playing for the Philadelphia Phillies at Veterans Stadium.
Kent Bateman, father of Jason and Justine Bateman did not appear on Bonanza ever. He is a director and producer. Actor Charles Bateman did appear on Bonanza, no relation to the other Batemans.
John kennedy aug. 1957,
John Abadie debuted on April 26, 1875 and played his final game on June 10, 1875.
John Ake debuted on May 12, 1884 and played his final game on July 15, 1884.
John Allen debuted on June 2, 1914 and played his final game on June 2, 1914.
John Anderson debuted on September 8, 1894 and played his final game on October 2, 1908.
John Andre debuted on April 16, 1955 and played his final game on July 16, 1955.
John Andrews debuted on April 8, 1973 and played his final game on September 19, 1973.
John Antonelli debuted on September 16, 1944 and played his final game on September 17, 1945.
John Atz debuted on September 24, 1902 and played his final game on September 30, 1909.
John Axford debuted on September 15, 2009 and played his final game on September 28, 2013.