Randy Johnson, American baseball player and actor
Randall David Johnson (born September 10, 1963), nicknamed "The Big Unit", is an American former professional baseball pitcher who played 22 seasons in Major League Baseball (1988–2009) for six teams, primarily the Seattle Mariners and Arizona Diamondbacks.

At 6 ft 10 in (2.08 m), Johnson was the tallest player in MLB history when he entered the league: a factor that contributed to his extremely intimidating persona and pitching style. He is known for his dominant fastball and devastating slider, which topped at 102 mph and 90 mph respectively. After struggling with his control early in his career, Johnson went on to lead his league in strikeouts nine times, and in earned run average, winning percentage, and complete games four times each. Along with teammate Curt Schilling, Johnson was one of two World Series Most Valuable Players in 2001; in the Series, Johnson won three games and led the Arizona Diamondbacks to a World Series victory over the New York Yankees in the fourth season of the team's existence. He won the pitching Triple Crown in 2002. On May 18, 2004, at the age of 40, Johnson became the oldest pitcher in major league history to throw a perfect game.

Johnson's 303 career victories are the fifth-most by a left-hander in MLB history, while his 4,875 strikeouts place him second all time behind Nolan Ryan and first among left-handers. Johnson is a ten-time All-Star, won the Cy Young Award five times, and is one of only two pitchers to win the award in four consecutive seasons (1999–2002). Johnson won Cy Young Awards in both leagues. He is also one of five pitchers to pitch no-hitters in both leagues, and one of 20 pitchers in history to record a win against all 30 MLB franchises. He is also noted for his longevity; he pitched past his 46th birthday (an exceptionally rare accomplishment in the MLB, especially for a pitcher), and while most pitchers who recorded over 300 strikeouts in a season tend to be in their mid-to-late-twenties or early thirties, 4 of 6 Johnson's such seasons came at or past his 34th birthday.

Johnson was elected to the Baseball Hall of Fame in 2015, his first year of eligibility. He is the first member of the Hall to be depicted in a Diamondbacks uniform on his plaque.