Super Simian (lvl 13 science tanker) was a genetic scientist who's revolutionary new steroid left him with a revolutionary new cancer, treatable only through a unique form of gamma radiation that left him with invulnribility and super-strength. He continues his gene research remotly by studying the effects that his steroid had on his body. He sends his results in to various companies to help them further understand gene therepy. He is paid hansomly in cash. (Liberty server, Liberty Covenant founding member)
I have other characters, but he's my fave.