I've had quite a few character-based dreams before. One such dream involved me going to a college where the professor was William Walter Wordsworth from Trinity Blood (in the actual anime he mentions that he really does teach at a university). In the dream, I followed William around, talking to him and blushing. Suddenly, the main antagonist of Trinity Blood, Cain Nightroad, attacked the university. William had shielded me from the wreckage, but he was injured in the process. I remember holding him in my arms, saying "please don't die..." Unfortunately, the dream ended there.
Another dream started out fairly normally, with me going to the mall (I go to the mall a lot in my dreams). However, around the middle of the dream, Vampire!Walter and Alexander Anderson from the anime Hellsing were fighting each other on the bottom floor of the mall while Integra and I watched from the second floor. Integra told me something really deep and profound, but I don't remember what it was.
More recently, I've been watching the anime Saiyuki at night and naturally I dreamt about it. I don't remember what the dream was, though. All I remember was waking up and thinking: "Wow! I didn't have a Hellsing or Trinity Blood dream for at least a year after I started watching them; I've only been watching Saiyuki for a couple of days and I'm already dreaming about it!"