Groofus was one of the demons that comprised the cast of Smile Time. He was voiced by Tim Blaney.
Although evil, Groofus seemed to take pride in providing quality "edu-tainment" for Smile Time's preschool audience. He wrote a song that would teach the difference between an analogy and a metaphor, and he seemed genuinely concerned that Angel's attack on Smile Time would "ruin the show". This points to the fact that, similar to the female puppet, he was not nessaccarily evil, unlike Polo.