I saw Faye as estp somewhere. If I remember right.
Speaking of Lupin, what is Jigen's type? istp?
See i changed the title for you.
Faye i believe is an estp though on her times of extreme emotions she displays enfp character traits. If i am not overanalysing she is an estp 7w8. If i am overanalysing she was an enfp who became an estp 7w8 as a coping mechanism to deal with her past trauma and the feeling of being awaken in an era where all her loved ones have passed away. If course i could be very very wrong here

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Regarding her enneagram type in her present estp self it is a bit confusing because she is extremely aggressive and has a counterphobic 6w7 touch to her. But she is clearly a 7w8. So maybe she is an sx/so?
Jigen is a istj it hurts. However i am unable to type his etype properly. I find it very hard to type the etype of istjs unless one is a e1.
Compare jigen with lupin. Jigen is rather pessimistic and has tert fi always influencing him (fi based value system) although he maintains a rather unemotional poker faced expressions at most times which implies itj (i believe i'd have to elaborate further).
Lupin is a istp 7w8 (especially his original character in the mangas and the series 'a woman named fujiko mine'. Comparing his personality with jigen: he is always positive, easy going, has no fi at all (no apparent value system), always have ulterior motives (tert or inferior Fe) and has animated facial expressions. Of course animated facial expressions when excited is not indicative of any type but his are extremely different from an itj.
I will most likely receive opposition regarding my istp typing for him. I see that most people type him as an entp - without backing them up -. This is probably due to his ridiculously long grand schemes which are stereotypically thought to be ntj>ntp and a few other factors such as his extroverted nature and his Pe based characteristic traits (which is also probably why people believe he is entp>entj).
However his ridiculously long grand schemes are actually quite ridiculous and unrealisitc (believe me even entps or probably entjs aren't that clever and if so al of them would be millionaires overnight) and his extroversion is due to him being a 7w8 which is known to be the most extroverted type. And yes istp 7w8s do exist.
In defense of his entp typers his character changed from season to season and i am typing him based on his original character traits and his depiction in the series 'a woman named fujiko mine' which is a much darker character who clearly uses Se based persuasive tactics than Ne based idea bouncing off the wall. In some of the seasons he is a much mellow, less manipulative/persuasive character who is a goofball which would imply that he is not entirely istp 7w8 at all times.