Relatives are always a cause for concern for on Revenge, and it sounds like a certain half-bro we're going to meet in the Season 3 finale is no different.

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E! reports that the Season 3 finale will introduce us to Gideon, Margaux LeMarchal's (Karine Vanasse) half brother. He'll be the second relative we'll meet before the season is out — her dad, Pascal LeMarchal (Olivier Martinez) will be swanning into town in this week's Season 3, Episode 16 ("Disgrace").

We've already heard enough about Pascal to know he's probably bad news, but what about this half brother? Is he trouble? Oh, who are we kidding — this is Revenge! Everyone is trouble, and it sounds like Gideon is no different. E! describes this new character as "devious and dashing," and warns he has a dark side.

How dark? We might have to wait until Season 4 to find out. The show hasn't been officially renewed, but it seems very likely, and if it does come back, Gideon is coming with it, at least for a little while.

Are you excited to meet this new character? Let us know in the comments below!

Source: E!

Catch the next episode of Revenge on Sunday, March 16 at 10 p.m. ET on ABC.

Rebecca Martin is an Associate Editor at Wetpaint Entertainment and our resident Game of Thrones, Breaking Bad, and genre TV expert. Follow her on Twitter and Google+!