Hero Machine (http://www.ugo.com/channels/comics/heroMachine2/heromachine2.asp) is a little online software toy that lets you generate superhero-style character sketches. Might be worth using for early design of characters.
(https://wyrmkeep.com/forums/proxy.php?request=http%3A%2F%2Fwww.xepher.net%2F%7Ekschnee%2Ffoxcourier.jpg&hash=540d34140cc2f810bfd08c352f00c8e7dcd660a0)
Though from what little I know of art, it's best to use the pose itself to help convey information about the character, and this program has only a generic pose.