Jimmy is one of the band members and one of Herman E. Calloway’s closest friends. He is the one who invites Bud Caldwell to go out to eat with the band after Herman denies that Bud is his son, and he is also the one who oftentimes diffuses some tense moments between Herman and Bud. Moreover, along with Miss Thomas, he is the one who explains Bud’s mother’s relationship to Herman. He is also the one who breaks the news to Bud that Herman isn’t his father, but his grandfather—Bud’s mother was Herman’s daughter. Bud considers Jimmy, like other members of the band, part of his new family.