Jamie Bamber is headed to TNT.

The British actor (Battlestar Galactica, Body of Proof) will appear on multiple Rizzoli & Isles Season 5 episodes, TV Line confirms, coming on board for a killer arc.

Look for the actor to recur as Paul Wescourt, a successful attorney who is accused of murdering his mistress.

He will debut on the September 2 midseason finale and then also appear on the first Rizzoli & Isles episode of the fall.

TNT is yet to announce a return date in 2014 for this popular drama. But just know: you can always watch Rizzoli & Isles online!

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.