Hamill first portrayed the villain on the short-lived '90s version of the series. This time around, there's a twist. The character on the CW version is an anarchist and terrorist con man serving a life sentence in Iron Heights who helps Barry (Grant Gustin) and Det. West (Jesse L. Martin) foil the city-wide attacks of a wannabe Trickster eagerly following in the original's deadly footsteps." The episode will air in 2015.
"Having Mark reprise his role as The Trickster was on our original wish list when we were planning our version of The Flash," executive producer Andrew Kreisberg told the site. "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!"
Hamill is the second original cast member to stop by. Original Barry Allen John Wesley Shipp now plays Grant Gustin's dad.
The Flash airs on Wednesdays at 9/8c on The CW.
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