I have recently realized that the two characters I identify the most with are Dorothea Brooke (Middlemarch - ok, it's classic literature rather than pop culture) and Leonard Hofstadter from The Big Bang Theory. !!!
That makes sense, I think - it recently sprung into my mind that Leonard might be a 6w5 (like you) and I was all, "why didn't I think of that before?"
Yeah, he definitely could be! I know he's usually typed as INTP or INTJ, but I seriously think he could be a 6w5 INFJ. The way he over-analyzes emotional and romantic matters is way too familiar.
Dorothea Brooke is almost certainly an INFJ, but not sure about her enneagram - I think she's likely to be a 1, maybe 1w2.
Whilest I am of opinion that the nerd characters portrayed in 'The Big Bang Theory' are very stereotypical and therefor too broken and rather impossible to type (They're still funny to watch though, I'm just saying that typology-wise, the series doesn't have anything interesting to add). Leonard is definately nothing like an NT and does indeed show more promise to be an the NF department.