If it's a character, who is it? If it's not, explain why you chose it.
My avatar is the Greek symbol for Gamma. I only use it because it kind of fits the theme I have going.
My profile picture is a skull inside a spade. Decided I wanted a spade for my profile pic, since my role in the Resistance is the 9 of spades. I love skulls, so there we have it. Fits the theme pretty well, too.