Because you like Pinky in Pinky and the Brain
Bob Parr is an ex-superhero now focused on being a dad, but he misses the action. See them in The Incredibles.
Darcy Lewis is a razor-sharp scientist studying things that science can't explain. See them in Thor.
Hunting ghosts is both a job and a passion for Abby Yates. See them in Ghostbusters (2016).
A jealous woman is dangerous. A jealous assassin woman like Elle Driver is even more so. See them in Kill Bill vol. 1.
Hank McCoy is a quintessential nerdy scientist but with a few rather unconventional physical attributes. See them in X-Men Series.
Knuckles the Echidna is a 16-year-old red echidna (aka a spiny anteater) and guardian of the ancient Master Emerald. See them in Sonic the Hedgehog.
An off-beat dork, John Egbert is funny, inventive, and endlessly optimistic. See them in Homestuck.
Raz is a 10-year-old boy who mostly stays in his own head, which makes sense since that's where he is strongest. See them in Psychonauts.
Sam Weir lives for the simple things in life: watching Saturday Night Live and reading comic books. See them in Freaks and Geeks.