I really like Skye. There was an episode last season where she learned some truth about where she came from and didn't lose her shit over it. Then this episode, she absorbed some more info without going nuclear. I know it's small, but it feels so real and organic. So many shows have their characters go into histrionics about things that, if you really looked at them, aren't that big a deal. Skye's reaction to both episodes was so not "tv character" and that's the best thing.
I have not seen Walter Mitty, so I won't comment specifically on that film. I will say that Hollywood portrays introverts very poorly, and whatever Mitty in particular says about the introvert - extrovert divide, it is very much the case that extroversion is almost universally portrayed as the only acceptable choice.
I say this as someone who is very well liked and has no problems successfully mingling with large groups of people, but fucking hates doing it. Introversion has nothing to do with whether you can interact well with other people. Introversion is not a synonym for "socially awkward. " And Hollywood is about as competent at dealing with that distinction as it is with pretty much every other cultural nuance.
If it makes you feel any better, as far as psychology is concerned there's nothing wrong with being either an introvert or an extrovert, both are normal. Introversion can cross paths with stuff like social anxiety or extreme shyness, but those are distinct pathologies, whereas simple introversion is not, it's a flavor of normal.
Spoiler:My god, the epilogue. My theory is Skye's father is the season big bad, not Whitehall. When they first met, damn if that doesn't leave an impression of who the character is. That's some Joker Dark Knight shit, no wonder Whitehall agreed to be his partner.
Also, I have no idea why everyone assumes Walter is an introvert. He has no problem talking to coworkers and family, or dealing with the admin staff for Facebook / his Moms retirement home. The only person he is shy around is the girl he crushes on, and even then he has no problem talking to her, just initiating conversation.
Because introversion isn't shyness or an inability to talk to people. Walter's rich internal life is the mark of an introvert.
Extroverts, in contrast, are typically quickly bored without people to interact with.