Mark Richard Hamill (born September 25, 1951) is an American actor. He portrayed James Jesse/The Trickster in the first season The Flash episode, "". He reprised his role in the second season of The Flash and portrayed The Trickster of Earth Three in the third season.
- The episode "" is Mark Hamill's third role as James Jesse, and second time in live action; the first time being in the 1990 live-action CBS series with John Wesley Shipp and Amanda Pays. In between shows, Hamill also voiced the character in the "Flash and Substance" episode of Justice League Unlimited.
- Hamill voiced The Joker in Batman: The Animated Series and Batman: Arkham series.
- Hamill is well known for his role as Luke Skywalker in the Star Wars film series, which was alluded to by Jesse quoting the famous "I am your father" line.