Brian is a projection of seth macfarlanes personality. Brian is trying to get others to appreciate him and he wants to be a significant contributing member to society because of having Te last. He is always questioning his ethical morality, because Fi is about personal emotional need, Brian overuses it by becoming self pleasing and underuses Te by unintentionally being a jerk to others. Fi and Ne working together (NF Consume) is characterized by gathering meaning to fulfill emotional need. Brian also uses Si and Fi together (SF sleep) characterized by prioritizing personal needs and values, emotional self awareness, and conserving energy (or being lazy in Brians case). Lastly Brian uses Si and Te together (ST blast) which is characterized by telling others the known information which is what makes Brian the voice of reason (and why many people vote ISTJ). M-Sensor because he pushes on facts and control, F-Te because he pushes on his own values and self worth but flexible and easy going with others. Brian's type is MF-Fi/Ne-CS/B which is the same type as Seth Macfarlane, I think Brian was written largely based on Seths own flaws which is why you see both share alot of similar characteristics and why Seth doesn't change his voice while acting as Brian. Also Seth and Brian are 3w4 and motivated by success and validation from others, Brian can appear like an unhealthy 9 in stress. He gains humility from growth into type 6.

A very pretentious INTP... He thinks he's a genius when he's just an average person among band of idiots.

He seems to value knowledge a lot, and is quite witty. He enjoys knowing more than the people surrounding him as he frequently seeks answers. He definitely has 5 in his tritype, thus, my 954 vote.

Ironically the most realistic INTP in fiction is a dog. Most INTPs have superficial broad knowledge like this guy and are usually self absorbed and lazy.

I feel like he has definitely 5 somewhere in his tritype. He seems to value knowledge and feels superior through knowing more than others and he kinda shows it off. He values intellectuality and he can be quite analytical. I haven't watched the show in a while but I can't really see 9 as his main type, even with an 8 wing

Fxckin’ simp and hypocritical douche,,
He’s definitely an INTP but at times his personality switches between that and ISFP

I feel like he for sure has 5 in his tritype to be honest

An yes, only Ti user would get frustrated if someone pronounced a word wroung

Rewatching the show, his Fe inferior is SO obvious.

Definitely has the inferior Fe problem of needing validation and just being selfish and manipulative. And to think he used to be a good character, but is no better than the likes of Peter and Lois (if not worse).