We all have a little bit of "the joker" in us, don't we.  We like to make peple laugh.  The Angel Joker was a very bad person at one time, in fact, he was a criminal.  But The Angel Joker saw the light and reformed his ways.  He now spends his time making people laugh and feel good about themselves.  The Angel Joker is a reformed criminal who paid his debt to society and now does the work of a master magician and good solid citizen.