Johns physical appearance could be described as a kid with black messy hair. He has an obvious nerdy look about him, a trait inherited from his ectobiological mother. His outfit has a picture of what appears to be Slimer from Ghostbusters but is in fact a Japanese knockoff.  described by Dirk as being a real kindly old cornball and that a nicer guy you couldn't hope to meet 
best friends with dave strider, jade harley (his sister), and rose lalonde. does NOT have any romantic feelings for jade.
