Just make your character incredibly cliche and unoriginal. A christ-like figure or a cold-blooded serial killer will do. Mentally insane characters seems to be popular nowadays too.
Or, you can always watch a semi-popular movie and based (rip off) your entire character off of the main hero/villain. IE: Dark Knight etc.
Then I hit myself over the head repeatedly until that idea is horribly warped
Then I read something Sheo said at some point in these forums and make it apply to my character in some way
Finally I give them a latin name (lol indomitus)
~
Okay really I just make it up on the spot and keep adding details and add some 'uncool' spots and imperfections to make them 1) more realistic and interesting 2) fun/funny to me
I listen to music, watch movies. Or if you find a really cool picture just look at it long enough and it is like it starts to talk to you and tells you what it wants to be. and no I am not insane.:CIsee:
My brain is a confusing place...I come up with people all the time to fit the warped and fantastical story lines running around, and play them out with stix in ym backyard...(wow, I'm 15 and still do these things...:CShock:)
After that, I try to make a cool, original ways to write about the people.