Star Wars: The Force Awakens star Mark Hamill has signed on to play James Jesse, a.k.a. The Trickster, in an upcoming episode of CW's The Flash. The actor actually played the same character in two episodes of the 1990 CBS series The Flash, which only ran for one season. His Joker-esque portrayal of The Trickster actually lead to Mark Hamill voicing The Joker in Batman: The Animated Series and Superman in the 1990s. Here's the character's official description from Hitfix:
"Mark Hamill returns in a brand new interpretation of James Jesse (aka The Trickster), a role he originated on the 90's Flash series. In this new iteration, The Trickster is an anarchist terrorist con man serving a life sentence in Iron Heights who helps Barry (Grant Gustin) and Det. West (Jesse L. Martin) to foil the city-wide attacks of a wannabe Trickster eagerly following in the original's deadly footsteps. The episode will reunite him with John Wesley Shipp who went up against him as the original Flash on the CBS version."
Mark Hamill will appear in the 17th episode of The Flash, airing sometime in 2015. Mark Hamill also voiced The Trickster in the animated Justice League series, but this will be his first time playing the character in a live-action role since the original Flash series. Here's what executive producer Andrew Kreisberg had to say about the casting.
"Having Mark reprise his role as The Trickster was on our original wish list when we were planning our version of The Flash. Christmas and Chanukah came early for us this year when he said yes! We are beyond humbled and excited to have him joining us for another round of deadly trickery!"