Some cool news here for both Arrow fans and wrestling fans: Cody Runnels, AKA wrestling star Cody Rhodes -- who once tussled against Stephen Amell in the ring at WWE SummerSlam when he was wrestling under the name Stardust -- is returning to Arrow as the villainous Derek Sampson.

Cody Rhodes as Derek Sampson in Arrow.

Rhodes was introduced as Sampson back in Season 5's third episode, "A Matter of Trust." In that episode, he was depicted as a drug-dealer (peddling "Stardust") who transformed into a regenerating supervillain who no longer felt pain.Rhodes will be back in episode 521, which will debut near the end of the season in late April or early May. In the meantime, you can read my interview with Rhodes from last October, when he first appeared as Sampson , describing what it was like to reunite with Amell on Arrow.

Matt Fowler is a writer for IGN and a member of the Television Critics Association (TCA). Follow him on Twitter at @TheMattFowler and Facebook at Facebook.com/MattBFowler