My RP character:
Name: Roger "Deadman" Mortis (notice the elaborate pun, Roger Mortis = Rigor Mortis, hence the nickname "deadman")
Age: Somewhere around 30
Notable charactaristics: Roger was at one point bitten by a bizarre sort of zombie, which when combined with some illegal chemicals resulted in a split personality. In the daytime, Roger is your average survivor. But at night, his appearance drastically changes, looking much like a witch, though male and with tiny, useless claws. His personality also changes, becoming more quiet, stealthy, cunning, and intuitive, and has his sense of smell improved. He is not evil during this time, but is often shot at by survivors due to his appearance. Most simply tolerate him after the "daytime Mortis" explains himself, though one survivor in particular is a bit too trigger-happy and at one point the two shot each other. He is immune to further zombification infection at night, due to the bizarre circumstances of his infection, and he is very cautious handling his gun's ammunition so as not to infect other survivors. In-storyline, he is known as "Deadman" both because of his numerous brushes with death (he often escapes by hurling his remaining items at zombies, after drenching them in a special substance that drives them berserk over it) and because of his semi-infection.
Lately, both personalities have been obsessing over finding the "blue key", for reasons unclear.