Lynn Nolan Ryan Jr., born January 31, 1947, nicknamed "the Ryan Express", is an American former professional baseball pitcher and sports executive. Over a record 27-year playing career in Major League Baseball (MLB), Ryan pitched for the New York Mets, California Angels, Houston Astros, and Texas Rangers. After his retirement in 1993, Ryan served as chief executive officer (CEO) of the Texas Rangers and an executive advisor to the Houston Astros. He was inducted into the Baseball Hall of Fame in 1999 in his first year of eligibility, and is widely considered to be one of the greatest pitchers of all time.

Warren Edward Spahn was an American professional baseball pitcher who played 21 seasons in Major League Baseball. A left-handed pitcher, Spahn played in 1942 and then from 1946 until 1965, most notably for the Boston Braves, who became the Milwaukee Braves after the team moved west before the 1953 season.

George Thomas Seaver, nicknamed "Tom Terrific" and "the Franchise", was an American professional baseball pitcher who played 20 seasons in Major League Baseball. He played for the New York Mets, Cincinnati Reds, Chicago White Sox, and Boston Red Sox from 1967 to 1986.

Early Wynn Jr., nicknamed "Gus", was an American professional baseball right-handed pitcher. He played in Major League Baseball for the Washington Senators, Cleveland Indians, and Chicago White Sox, during his 23-year MLB career.

Donald Howard Sutton was an American professional baseball pitcher who played 23 seasons in Major League Baseball, primarily for the Los Angeles Dodgers.

Steven Norman Carlton is an American former professional baseball player. He played in Major League Baseball as a left-handed pitcher for six different teams from 1965 to 1988, most notably as a member of the Philadelphia Phillies with whom he won four Cy Young Awards as well as the 1980 World Series.

Gaylord Jackson Perry was an American right-handed pitcher in Major League Baseball who played for eight teams from 1962 to 1983, becoming one of the most durable and successful pitchers in history. A five-time All-Star, Perry was the first pitcher to win the Cy Young Award in both leagues.

Philip Henry Niekro, nicknamed "Knucksie", was an American baseball pitcher who played 24 seasons in Major League Baseball for the Milwaukee/Atlanta Braves, Cleveland Indians, New York Yankees and Toronto Blue Jays. Niekro is generally regarded as the greatest knuckleball pitcher of all time.