ITV will be airing the Charleston set legal thriller series, The Rainmaker, on Friday 28 August at 9pm19:15, 28 Aug 2026Updated 19:16, 28 Aug 2026ITV viewers will be surprised to learn where legal thriller series, The Rainmaker, was actually filmed.‌The broadcaster will be airing the legal drama on Friday 28 August at 9pm on ITV after acquiring the star-studded US show. The show will air weekly and also be available to stream on ITVX.‌A synopsis teases of the legal thriller: "Based on the best-selling novel by John Grisham, Rudy Baylor, who is fresh out of law school, goes head-to-head with courtroom lion Leo Drummond as well as his law school girlfriend, Sarah.‌"Rudy, along with his boss, Bruiser, and her disheveled paralegal, Deck, uncover two connected conspiracies surrounding the mysterious death of their client’s son."The show is meant to be set in Charleston, South Carolina, yet in reality, the programme was actually shot in Dublin, Ireland, with just a few brief shots filmed in Charleston.‌Bodkin's Robyn Cara, who plays Kelly Riker in the series, previously told Brit + Co about filming in Dublin, Ireland: "There was some sea swimming!"So, we were filming in Dublin and I had filmed there before already. So I was like, 'Guys, you have to try this.'"So I got a lot of people to try sea swimming and it is like freezing, but people love it. So yeah, that was fun!"‌To which P.J. Byrne, who plays Deck Shifflet, joked: "I got my feet in, not my whole body! I am not a polar bear, I live in Los Angeles!"The incredible star-studded cast sees Rivals actor Milo Callaghan as Rudy Baylor, Mad Men legend John Slattery as Leo Drummond, Once Upon a Time's Lana Parrilla as Jocelyn "Bruiser" Stone and Jumanji star Madison Iseman as Sarah Plankmore.Article continues belowOther cast members include The Wolf of Wall Street actor P.J. Byrne as Deck Shifflet, Fantastic Beasts and Where to Find Them star Dan Fogler as Melvin Pritcher, Bodkin's Robyn Cara as Kelly Riker and The Split's Karen Bryson as Dot Black.The Rainmaker was first released in the US back in 2025, receiving rave reviews at the time. The show has been confirmed and renewed for a second series.The Rainmaker is available to watch on ITV and ITVX from Friday 28 August