One of the major highlights of season one of The Flash, was the 17th episode “Tricksters” that featured Luke Skywalker, The Joker, himself: Mark Hamill, as James Jesse a.k.a. the 1st Trickster, one of the many rogues from The Flash mythology. This was also a character that Hamill had played back in 1990 on John Wesley Shipp’s (Henry Allen) The Flash TV show on CBS and for the 2014 version of the series, the producers was able to get the legend that is Hamill to reprise the role. The door was left open for both him and the 2nd Trickster, Axel Walker (played by Devon Graye), to return in future episodes. If you want more Hamill on The Flash: then you shall get it!
A photo featuring Hamill on set of the show which was reported by Comic Book Resources and just a few minutes ago, Comicbook.com confirmed that Hamill is 100% set to return after reaching out to Warner Bros. TV and The CW. While no further details were given, you can officially start geeking out as you will be seeing Hamill sometime this season and hopefully for more than just one episode.
UPDATE: Hamill has also tweeted that he is returning to the show.