Japanese teams
No one. Players are not allowed to play for two different teams in the same game in professional baseball.
Yes. Each season teams will play 15 to 18 games against teams from the other league.
Bryan Clark debuted on April 11, 1981 and played his final game on May 30, 1990.
George Clark debuted on May 16, 1913 and played his final game on July 14, 1913.
Japanese teams
30 teams
Jack Clark debuted on September 12, 1975, playing for the San Francisco Giants at Candlestick Park; he played his final game on August 28, 1992, playing for the Boston Red Sox at Fenway Park II.
yes during inter league play
not many
No one. Players are not allowed to play for two different teams in the same game in professional baseball.
Jack Clark played in 135 games at designated hitter for the Boston Red Sox in 1991, starting in none of them. , equivalent to 0 errors per game (estimate based on total games played in).
Jack Clark played in 64 games at designated hitter for the Boston Red Sox in 1992, starting in none of them. , equivalent to 0 errors per game (estimate based on total games played in).
Jack Clark played in 112 games at designated hitter for the New York Yankees in 1988, starting in none of them. , equivalent to 0 errors per game (estimate based on total games played in).
Chicago
140
they have 162