Treacle: The optimist of the show.
Meany: Not much is known about him, except he oftens hits Treacle (and later, Brain) on the head with a wooden plank.
Brain as The Iconoclast / Noodle Noggin: Brain on Meany and Treacle. He would often rant about a scientifical explanation depending on the situation,until Meany hits him with his wooden plank. Later after his debut,he became a breakout character.
Pinky as Big Ears: Pinky on Meany and Treacle. He is Noodle Noggin's friend and can wiggle his ears,which makes kids laugh. Like Noodle Noggin, he became a breakout character.