Walter White


 * Spiteful/Haughty: Walter is a downright egomaniac whose narcissism devolves into a borderline god-complex by the final season, and is extremely vindictive and petty to his enemies, the two best examples being when he straight-up kills Mike solely for insulting his pride, and when he tells Jesse that he knowingly let his girlfriend choke on her vomit just as a final, bitter insult.
 * Intelligent: Walter is also an absolute genius, as proven by being a mental calculator, one of the greatest chemists in the country, as well as possessing a pure practiciality and fast-thinking that has saved his life countless times. His ability to analyze situations and turn them entirely in his favor is truly impressive, best examplified when he recognizes the rivalry between Gus Fring and Hector Salamanca and uses this to assassinate the supposedly untouchable Fring.
 * Vengeful: Walter kills Tuco for kidnapping him, kills Fring for threatening his family, and slaughters Jack's gang for killing his brother-in-law, Hank, and robbing him. His vengefulness can devolve into pettiness, however, like when he kills Mike just for insulting him.
 * Loving/Selfless: While Walt is a murderously petty egomaniac, he still genuinely cares about his family, and only devolved into such a monster to financially secure them after his death. Walt even sacrifices himself in Hank's memory (although to be fair, he had absolutely nothing to lose anyways)
 * Fearless: Walt is far too prideful to bow down to extremely dangerous and powerful criminals like Tuco, Fring, and Jack, being endlessly insulting to them and defiant to the end.