Alternative versions of Robin is later established that they are from the current time-line, and were shunted through time and given false memories by the Time Trapper, who wished to use them as sleeper agents against the time travel villain, Extant. It wasn't revealed until one of the later runs of the Teen Titans that this was not Dick Grayson, in fact his true identity was never uncovered. After this storyline, this version of Nightwing has not been seen since. Whether this version existed at all, after the events of Infinite Crisis or would later to be revealed to be an alternative Dick, Jason,
Alternative versions of Robin The grief-stricken hero then kills Joker for revenge. Later, in the sequel "," Dick returns as a spirit after the Joker returns from Hell. He helps Batman defeats the Clown Prince of Crime once and for all, and gives Batman the strength to move on. Tiny Titans is a kiddie-based series follows the exploits of the Teen Titans (and other DCU character), as grade school kids attending school for Super-hero sidekicks. Dick Grayson's Robin is a primary character in the series, and often tries to act like the leader, although the rest of the Tiny Titans rarely listen to him.