Alien Leader

The Alien Leader is an unnamed one-time villain from the Cartoon Network original series, The Powerpuff Girls, only appearing in the episode "Forced Kin". He is a ginormous, robotic, alien supervillain, who came to Earth to cause a massive amount of damage to Townsville. The Powerpuff Girls were unable to stop him, however Mojo Jojo was able to overpower and defeat him.

He is voiced by Kevin Michael Richardson.

Biography
In "Forced Kin", an alien spaceship destroyed various buildings in Townsville, using powerful laser beams, so strong, they were able to work from outer space. The Powerpuff Girls sprung right into action and faced the alien spaceship. The Powerpuff Girls found themselves paralyzed in shock, over the inconceivable, towering size of the shuttle. Nevertheless, they fought the machine, and hoped to take it down. However, every one of their attacks was used right back against them, as whoever controlled the ship, was able to extrapolate their every move and decision, before they could even make it. Every counter attack made by the alien spacecraft was far more powerful than the counterparts, from The Powerpuff Girls. It was then, that they realized, they could not take on this villain alone, and they needed help from someone else, who was able to get into the mind of a villain. Their best bet was to turn to Mojo Jojo.

Mojo Jojo refused to help them at first, but The Powerpuff Girls let him know that if he destroyed the world, this would lead to him being destroyed as well. They motivated Mojo Jojo to fight him, by saying that this villain was far superior to him, making Mojo Jojo jealous, so he would really want to stop him.

Mojo Jojo became the teacher, and had The Powerpuff Girls assist him in taking down this alien menace. He needed to teach them how to be evil, so that they could better defeat him. This was tough for Blossom and Bubbles, but Buttercup got on board with this very quickly. Mojo Jojo observed the ways of this evil villain, through his telescope, and noted just how fantastic it was, in it's crimes. The alien spaceship blew up a dam and the water went flowing toward a nuclear power plant, and it's crashing into the plant, caused it to melt down and explode.