We recently learned that Mark Hamill would soon appear on The Flash as villain The Trickster. However, given Hamill’s age, the show has apparently decided to throw the character in prison so our hero Barry Allen can consult him, Hannibal Lecter-style, when a copycat Trickster starts causing trouble in Central City. Now we know who will be biting Hamill’s style as well: according to The Hollywood Reporter, Dexter alumnus Devon Graye will be playing pretend Trickster Axel Walker in episode 17. Graye, who played a young Dexter Morgan on the Showtime serial-killer series, will be joining a slew of other guest stars scheduled spew speed-related puns at the show’s namesake in upcoming episodes. The Flash returns to the CW January 20 at 8 PM EST.