April 18, 2016 at 05:37 PM EDT

Banshee star Ulrich Thomsen has been tapped to play a mysterious villain being introduced in the final episodes of The Blacklist‘s third season, EW has learned exclusively.

Thomsen, whose TV credits also include Fringe and Alias, will play Alexander Kirk, a charismatic, extremely reclusive, multi-national businessman who runs a global energy empire. He’s now using his power and resources to strike back against his longtime nemesis, Raymond Reddington (James Spader).

We’ll learn that Kirk and Red share a history fraught with lies and betrayal, with Kirk being connected to one of the most intimate, shocking secrets from Red’s past. Could he be to blame for this?

The Blacklist airs Thursdays at 9 p.m. ET on ABC.

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