 Bob is Zack and Cody's most frequent friend featured on the show with 16 appearances.He visits Zack and Cody on the SS "Tipton" once in The Suite Life on Deck, which reveals he is now dating Cody's ex-girlfriend Barbara.Max (played by Alyson Stoner) – One of Zack and Cody's friends, she is a girl who usually wears pigtails in Season 1 and is sometimes mistaken for a boy.