Wrath/Anger/Rage you get the idea in case you didn't know. Not to hard to design him, just make a guy that looks generally pissed at all times.
This is a character sketch, so I wasn't going for any innovative or incredibly interesting poses. This was simply drawn to get a feel for the character and to establish their look. Any missing limbs can be assumed as symmetry from a design standpoint, meaning I didn't feel like drawing both legs/arms/whatever.