Walter - INTJ, he is Ni dominant, look at the way he threatened Hank covertly using ambiguous meaning
Jesse - ISTP, He is the most Ji person on the show, he struggles more because of Ji than Walter who can bend things more with Ni, people think he is ESP because of his impulsiveness but IPs can be quite implusive too, this is where I think IPs might differ from the typical introvert descriptions.
Skylar - ENFJ, she's a NJ just like Walter and can smell all his schemes, he can't hide anything from her
Hank - ESTP, agreed but some people type him as a J which is baffling considering he has a easygoing and cavalier attitude most of the time which is typical of ESTPs
Marie - ESFP, she is a unhealthy SeTe ESFP
Walter Jr. - INTP, I'm not really sure but I think this fits
Saul - ENTP, he's the classic ENTP bullshit lawyer type, more Ne than Se
Mike - ESTJ, no way is he any kind of P, he is extremely methodical and organized in his approach
Gus - INTJ, agree
Ted - ESFJ, seems more interpersonally oriented than most ESTJs would be
Gale - INTP, the contrast between him and Walter is interesting even though they only differ on P/J, they are so different, Gale is goofy, quirky, and open while Walter is dry, serious, and expedient, reminds me for the difference between Einstein and Newton.
Andrea - INTP, don't know enough about her
Additional characters.......
Badger - ESFP
Skinny Pete - ISFP
Todd - ISTP
Jane - INTP
Lydia - ISTJ
Tuco - ESTP
Gomez - ISFP
Krazy 8 - ENTJ
Combo - ISTP
Which ones do you disagree with and why?
Anyone other characters you've typed?