male
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.
Mandark Astronomonov
A horrible decision, really
for A horrible decision, really in Alternative Responses to "I Love You"
Suggested by dynastiprimosfan
A meme idea.