His first DC Comics related role was on The Flash, where he portrayed The Trickster/James Jesse in two episodes entitled "The Trickster" and "Trial of The Trickster". Hamill is slated to reprise his role in an upcoming 2015 episode 17 of The CW's The Flash (2014 TV Series) A year later he worked on the animated series Batman voicing the character he would become primarily tied to, the Joker. In addition to the Joker, he also voiced Ferris Boyle, Trickster, Solomon Grundy, Jordan Pryce, and other smaller parts for projects set in the DCAU. This included video games such as Batman: Vengeance. *