Tonight is the night we say farewell to the CW’s Arrow for a while, as the midseason finale ‘Three Ghosts’ will conclude the two-parter that kicked off last week with ‘The Scientist’. Last time we saw Oliver and his friends, a new face had been accepted into the tight fold of vigilante sidekicks and Starling City’s first superpowered villain had just been introduced. Needless to say, it’s definitely going to be worth tuning in for the conclusion.

When Arrow returns for the second half of the second season next year, one of the many villains from the comic books who will be introduced is William Tockman AKA Clock King. One of the lesser-known foes of Green Arrow and Batman, Clock King was nonetheless popularized by his guest appearances in Batman: The Animated Series and Justice League Unlimited.

TV-Line reports that the nefariously punctual villain will be played by Prison Break‘s Robert Knepper, who can currently be seen on TNT’s crime drama, Mob City. By the sounds of it he’ll only be getting a single episode appearance for now, as he’s set to guest-star in episode 14 of season 2; but perhaps if the Clock King proves popular he could make a comeback in the future.

That’s not the only new role for Knepper to be revealed today, however. Over on the official Facebook page for The Hunger Games, Lionsgate announced that the actor will also be playing Antonius in The Hunger Games: Mockingjay Parts 1 & 2. True fans of Suzanne Collins’ original novels will of course remember Antonius as one of the most important and prominent characters in the final chapter of the trilogy.

Alright, we’re just testing you. There actually isn’t a character called Antonius in Collins’ novels, but Deadline claims that Knepper’s character is “President Snow’s minister” so we may well get to see Knepper flexing his villain muscles in this role as well. Considering how great he was as the slimy, cunning T-Bag in Prison Break, we can happily get behind both of these casting choices.

Arrow‘s mid-season finale ‘Three Ghosts’ airs tonight on The CW @8PM.

The Hunger Games: Mockingjay – Part 1 & 2 arrive November 21st, 2014 and November 20th, 2015, respectively.

Source: TV-Line, Lionsgate, Deadline