The Riddler is a fictional character from the Batman. He only appears in a two episode Operation R.I.D.D.L.E. and Operation S.U.P.E.R.. He tries to kill Numbuh 2 and captured by a Numbuh 4. He is the same character of the Numbuh 122. He wears large green derby hat, sunglasses, green suit, purple tie and black shoes. As well a Staff.