Through the 2007 World Series, that would be Hall of Famer Whitey Ford of the New York Yankees who pitched in 22 World Series games, all of them starts.
Jerry Staley 1959 for White Sox vs Dodgers
Most American League World Series Champonships.The New York Yankees won 27 World Series titles, in 40 World Series appearances. More than any other team in Major League history. The Oakland Athletics have the second most World Series titles for an American League team with 9 in 14 World Series appearances. The Boston Red Sox are third with 7 titles in 11 appearances, and the Detroit Tigers are 4th with 4 titles in 10 appearances.
Yankees, Yankees and Yankees
The Homestead Grays with 5 appearances.
Yogi BerraYogi Berra won 10 World Series rings in 14 World Series appearances
Jason Marquis pitched for the South Shore American Little League in the 1991 Little League World Series and the St. Louis Cardinals in the 2004 MLB World Series.
Yogi Berra has the most with 14 World Series Appearances.
Old-time pitcher Pud Galvin had 364 lifetime wins, but his career ended 11 years before the first World Series game was ever played.
The pitchers bat in the world series when it's played in a national league park, they use a DH in an American league park.
Don Gullett has: Played Himself - Cincinnati Reds Pitcher in "1970 World Series" in 1970. Played Himself - Cincinnati Reds Pitcher in "1970 National League Championship Series" in 1970. Played Himself - Cincinnati Reds Pitcher in "1972 World Series" in 1972. Played Himself - Cincinnati Reds Pitcher in "1972 National League Championship Series" in 1972. Played Himself - Cincinnati Reds Pitcher in "1973 National League Championship Series" in 1973. Played Himself - Cincinnati Reds Pitcher in "1975 National League Championship Series" in 1975. Played Himself - Cincinnati Reds Pitcher in "1975 World Series" in 1975. Played Himself - Cincinnati Reds Pitcher in "1976 National League Championship Series" in 1976. Played Himself - Cincinnati Reds Pitcher in "1976 World Series" in 1976. Played Himself - New York Yankees Pitcher in "1977 World Series" in 1977. Played Himself - New York Yankees Pitcher in "1977 American League Championship Series" in 1977.
Pedro Borbon has: Played Himself - Cincinnati Reds Pitcher in "1972 National League Championship Series" in 1972. Played Himself - Cincinnati Reds Pitcher in "1972 World Series" in 1972. Played Himself - Cincinnati Reds Pitcher in "1973 National League Championship Series" in 1973. Played Himself - Cincinnati Reds Pitcher in "1975 National League Championship Series" in 1975. Played Himself - Cincinnati Reds Pitcher in "1975 World Series" in 1975. Played Himself - Cincinnati Reds Pitcher in "1976 National League Championship Series" in 1976. Played Himself - Cincinnati Reds Pitcher in "1976 World Series" in 1976.
If you mean Major League Baseball, it's obviously the New York Yankees, with 40 appearances and 27 World Series victories.