 Tara Markov; Robins real identity is ambiguous because the  character looks and acts like Tim Drake, which would fit into the  history set up in the Batman animated series of the 1990s, but in  the episode "Fractured" Larrys real name is Nosyarg Kcid, which is  Dick Grayson backwards, which would fit into the motif of a 5th  dimensional beings and backwards names (i.e. Mxzptlyk or Kyltpzxm).  Also, in the episode "How Long is Forever?" it is revealed that  Robin grows up to be Nightwing, which was what DickGrayson called  himself in the comics after abandoning the title of Robin.