I used the "Amigurumi Dude" pattern from
Crochet Me to make a Mohinder doll.
The doll is three inches tall, made with a 2 mm hook and #10 crochet thread (and equivalent yarns). His hair is #3 crochet thread.
I also made a Sylar doll, which can be seen
at my LJ. (Warning: mild slashiness.)