Fantastic Max is a 1988–90 animated cartoon series as part of the 4th season of The Funtastic World of Hanna-Barbera, created by Kalisto Ltd. and Hanna-Barbera Productions and in association with S4C. It centers on a diaper-wearing toddler with a mohawk named Maxwell "Fantastic Max" Young who has adventures in outer space with two of his toys: FX, a pull string alien doll from a planet called Twinkle-Twinkle, and A.B. Sitter, a C-3PO-like android made of blocks.