Megamind was born on an Unknown planet that was destroyed by a black hole. His parents then placed him in an escape pod to flee his destroyed world. His mother gave him a fish in a bowl he named Minion. And his father gave him his B.I.N.K.E.Y. Megamind then was sent out into space.
Megamind is devious, but good at heart. He likes to be in the spotlight, and he doesn't care how he gets there. He is a child at heart, including having a childish innocence.
Throughout almost the entire movie, he is in a relationship with Roxanne Ritchie, but playing as Bernard because he knows Roxanne Ritchie wouldn't want to be in a relationship with a villain. In the end, he ends up dating Roxanne as himself, though.