Warren Spahn debuted on April 19, 1942, playing for the Boston Braves at Braves Field; he played his final game on October 1, 1965, playing for the San Francisco Giants at Candlestick Park.
His glory years were with the Boston/Milwaukee Braves.
I think that would have been pitcher Warren Spahn, but corrections welcome to this answer.
Warren Spahn played in 39 games at pitcher for the Boston Braves in 1951, starting in none of them. He made 7 putouts, had 50 assists, and committed 3 errors, equivalent to .077 errors per game (estimate based on total games played in). He had one double play.
Warren Spahn played in 40 games at pitcher for the Boston Braves in 1947, starting in none of them. He made 5 putouts, had 48 assists, and committed one error, equivalent to .025 errors per game (estimate based on total games played in). He had one double play.
Warren Spahn played in 20 games at pitcher for the New York Mets in 1965, starting in 19 of them. He played for a total of 378 outs, equivalent to 14 9-inning games. He made 4 putouts, had 25 assists, and committed one error, equivalent to .071 errors per 9-inning game. He had one double play.
Warren Spahn played in 16 games at pitcher for the San Francisco Giants in 1965, starting in 11 of them. He played for a total of 215 outs, equivalent to 7.96 9-inning games. He made 4 putouts, had 16 assists, and committed one error, equivalent to .126 errors per 9-inning game. He had one double play.
Warren Bogle debuted on July 31, 1968 and played his final game on September 15, 1968.
Warren Brusstar debuted on May 6, 1977 and played his final game on October 3, 1985.
Warren Cromartie debuted on September 6, 1974 and played his final game on September 15, 1991.
Warren Fitzgerald debuted on June 4, 1891 and played his final game on June 8, 1892.
NFL player Jeremiah Warren played for South Florida.
NFL player Pierre Warren played for Jacksonville State.