While attending Wizard World in Louisville, Kentucky this weekend, Arrow star Stephen Amell (Oliver Queen/Green Arrow) shared a tantalizing spoiler regarding a Season 4 baddie connected to Slade Wilson/Deathstroke (Manu Bennett).

"I would say if you are looking for iconic fights there might be a fight coming up with another Wilson," Amell revealed during the "Protecting Star City" panel.

Slade Wilson has a very active family in the comics, but not much of that has come up on Arrow. However, Slade did mention that he had a son named Joe, which means there is a good shot the Wilson being referred to by Amell will turn out to be Joseph Wilson, aka Jericho. In the comics, he has the ability to control other people once he makes eye contact with them and for the most part has been portrayed as a hero, being a loyal member of the Teen Titans.

Now that Damien Darhk and his criminal organization have infested Star City, Arrow could choose to introduce members of the Wilson family that have connections to H.I.V.E. There's Slade's wife and mother of his three children (Jericho, Rose and Grant), Adeline Wilson (née Kane), who at one time was the H.I.V.E. Mistress. Or they could go with Slade's son Grant (aka first Ravager), who was recruited by H.I.V.E. and given enhanced abilities that left him unstable.

Lastly, there is Slade's daughter Rose, who took up the Ravager mantle and had been a member of the Teen Titans, but in the New 52 she has become an antagonist of the superhero team.

Listen to Amell's comments, starting at the 31-minute mark, in the video below.

Arrow airs on Wednesdays at 8 p.m. ET/PT on The CW.