I believe Chihiro from Spirited Away to be ISFP. People love to type her INFP, but I don't remember she using Ne at all. She is lazy at first but the moment she has to work on something, she does it, learns it fast and does it somewhat well for a person her age. Se-aux seems more likely to me.
Also, I saw someone mentioning Arima Kousei (Your Lie in April) and really don't see how he could be a Fi-dom, but maybe someone could elaborate on that. I think he uses Fi, sure, but in a lower position. Maybe ISTJ? He is a tad emo but with that childhood, who wouldn't be.
I also saw Sanji being mentioned, but among the Mugiwara Crew, I think the ISFP is Chopper.
I think Taiga (Toradora) might be an IxFP, but I am not sure on whether she uses Ne-Si or Se-Ni. She is Fi as heck and definitely an introvert, at any rate. On the matter, Ryuji seems kinda ISFJ to me.
Edit: Miki Sayaka is ISFP, too. The thing is she is only really relatively stable until she isn't.