Because you like Dr. List in Marvel Cinematic Universe
Prideful and psychotic tendencies combine to make Dr. Eggman a dangerous and villain who will squash anyone in his path. See them in Sonic the Hedgehog.
N'Jadaka is a righteous man with a violent agenda. See them in Marvel Cinematic Universe.
Brian Griffin is the most scholarly member of the family—when he's not drunk on martinis. See them in Family Guy.
Sideshow Bob is a bitter ex-performer who was forced to do inhumane stunts for slapstick comedy. Now he's exacting revenge on his former boss, a clown. See them in The Simpsons.
Macbeth was probably named "Most Likely to Kill His Rivals" in his senior yearbook. See them in Macbeth.
A good-natured and academically minded superhero, Dan Dreiberg can still get his hands dirty in a fight. See them in Watchmen.
Despite Norman Bates' typically kind and shy personality, he is also prone to occasional violent outbursts. See them in Bates Motel.
A formerly adventurous playboy, Will Traynor has become cynical by what life has thrown at him. See them in Me Before You.
Winn Schott is just your friendly neighborhood superhero support system. See them in Supergirl.
A smart, spunky, and incredibly skilled gamer, Art3mis has a revolutionary spirit. See them in Ready Player One.
Illiterate and oblivious, Crash Bandicoot is still a hero. See them in Crash Bandicoot.
Freddie Freeman is a superhero aficionado with a dark sense of humor. See them in DC Extended Universe.