Dexter Laboratory 1.03

1. Dexter's Rival

Dexter is upstaged by the new kid in school, Mandark. It looks as though all is lost until Dexter learns that Mandark has a crush on Dee Dee.

2. Dial M for Monkey: Simion

Monkey is called on to save Earth from Simion who like Monkey was once a subject of laboratory experiments. Simion tries to talk Monkey into turning on Earth and joining him in his scheme for revenge. Monkey reflects back on his life but all that comes to mind are pleasant memories of times spent with Agent Honeydew.

Simion is voiced by Maurice LaMarche who was also the voice of The Brain on Pinky and the Brain.

3. Old Man Dexter

Dexter wants to stay up late to watch movies on Saturday night but hia parents won't let him. He builds a machine to advance his aging so he can stay up later but Dee Dee interferes with the machine and he winds up a senior citizen.