Susan "Mandark" Astronomanov is the main antagonist in Dexter's Laboratory. He is Dexter's rival and later mortal nemesis who often seeks to destroy both Dexter and his lab to prove once and for all that he is the superior genius.
If Anime/Video Game Voice Actors Voiced Cartoon Characters
What if anime/video game voice actors (e.g. Bryce Papenbrook and Todd Haberkorn) voiced cartoon characters from certain animated series (e.g. Gravity Falls)?
