Name: Pallando (Quenya), Romestamo (the name used for him in Middle-earth)
Age: Since the beginning of time, present in Middle-earth for at least one Age of the Sun
Gender: Male
Father/Mother: Eru Iluvatar (guess where I got my username from...)
Race: Maiar, in human form (Istar, a.k.a Wizard)
Appearance: Current purpose: En route to Valinor, as he has completed his task in aiding the Free Peoples of Middle-earth. Unfortunately, it appears that Dagor Dagorath (which is the apocalypse scenario I assume you are referring to) is about to begin, and he must aid the remaining Elves, Dwarves and Men (and Hobbits...) in their survival. He adopts a role similar to Gandalf's, going by the name of Romestamo ('Helper of the East').
To find out more about him,
Click MeUPDATE: In the Interest Check, I posted this CS as Alatar. I chose Pallando instead because I think 'Romestamo' will be easier to type than 'Morinehtar', although the latter name sounds cooler. Also, I think that Pallando would be less likely to fail in his mission (as Tolkein suggested at one point) than Alatar (purely because Alatar volunteered to go to Middle-earth, which sounds like quite a 'proud' thing to do). I hope this is okay, because the characters seem pretty much the same.