Josh's childhood best friend who helps verify his identity and later assists in locating the Zoltar machine. Despite Josh's demanding adult schedule straining their friendship, Billy remains a loyal companion and joyfully reunites with Josh when he returns to his childhood form.
Josh and Billy share a deep childhood bond that anchors Josh to his true identity.
Billy and Susan interact briefly when Billy provides crucial information about Josh's whereabouts.
Explore the full interactive character relationship map of Big