Monkey (Dexter's Laboratory)

Monkey is Dexter's lab monkey, who secretly has superpowers, unbeknownst to Dexter, and often tries to give him powers via unusual experimentation. Monkey is considered the planet's greatest Superhero. He stars in the back-up Dial M for Monkey cartoons, and occasionally appeared in several episodes of Dexter's Laboratory out of his superhero persona. He is voiced by Frank Welker.