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Actors from Taken and Sons of Anarchy are joining NBC’s Revolution.

First up is Leland Orser. He’s best known from the Taken franchise, and was a regular on ER and appeared as memorably panicked characters in Seven and Alien Resurrection. Orser will play a John Sanborn, a tense scientist who loves to build weapons.

Next is Patrick St. Esprit, who was the lumberyard owner/ex-mayoral candidate on Sons and was on The Chicago Code. He’s going to play Wayne Ramsey, a tough leader in the rebel resistance against Gen. Monroe.

Both parts are possible-recurring guest star slots on the fall breakout drama, which airs Mondays at 10 p.m. (if you missed the show this week during the literal East Coast blackout, try to find it — arguably the strongest episode since the pilot).