He is voiced by William H. Macy.
He is the pitcher of Chicago Cubs who has stolen Babe Ruth's famous bat Darlin' with the result that Yankee's father is blamed and fired. Lefty works for Chicago Cubs owner Napoleon Cross, who desires to see the Cubs defeat the Yankees during the 1932 World Series. Yankee Irving, steals the bat back to return it to Ruth. Lefty tried to retrieve the bat from Yankee, only to fail many times. At the end of the film after he lost the World Series, his boss Cross is arrested. When his part in the plan is revealed, Lefty is banished from the team. He is arrested.