It's interesting to see a series with so few characters. There's literally no recurring characters except Blockhead and his conscience. Well, I think some civilians appear later. They don't have names. Then again, neither does Blockhead's conscience. He's at least recognizable.
I knew those wouldn't be tongs. How'd he get cable? At first, I thought he looked like a happy face. In the scene where he bits the box he looks like Pac-Man. I guess both Pac-Man and happy faces look similar.