Somebody's real voice is probably the hardest one that somebody could attempt. The characters are all, believe it or not, rooted in a reality of some sort. I've met and talked to people, and they're also fusions of showbiz periphery. But the best thing was, if you did your own voice and you were the star of the show - if it came to blows and they had you on the ropes and you had to leave, then they could just get someone to sound exactly like you.