I myself find Shogo Makishima to be one of the most intriguing anime characters I've ever seen. Shinya Kougami's not far behind, either. As for anime besides Psycho-Pass, I'd have to say that Mei Tachibana from Say I Love You was interesting, and I don't mind saying that I've found Light Yagami to be an inspiration. XD

Himura Kenshin from Rurouni Kenshin, Yoite from Nabari no Ou, Kaori Miyazono from Shigatsu Wo Kimi No Uso.

They are all really interesting to me XD