Squilliam Fancyson (Dee Bradley Baker) is Squidward Tentacles's arrogant and wealthy arch-rival who has been able to succeed in everything Squidward has only dreamed of doing. He and Squidward compete in the series on many occasions and Squidward normally does not win over his rival, although there are some episodes where Squidward is triumphant. Though sometimes mistaken as a relative of Squidward due to their similarities, they were band classmates in high school and are not related.