Several cast additions have been announced for USA Network's series The Rainmaker, based on John Grisham's bestselling 1995 novel. Deadline reported that John Slattery (Mad Men, Spotlight) will portray Leo F. Drummond, with Milo Callaghan (Dune: Prophesy) as Rudy Baylor, and Madison Iseman (I Know What You Did Last Summer) as Sarah Plankmore.
From writer and executive producer Michael Seitzman, the Lionsgate and Blumhouse project received a series order by the NBCUniversal cable network in June, "capping a six-year journey by Seitzman to bring the book to TV," Deadline noted. Seitzman and Jason Richman wrote the pilot script, with Seitzman serving as writer on the series. The two are executive producing with Grisham, Jason Blum, and David Gernert.
A 1997 film adaptation of the novel, directed by Francis Ford Coppola, starred Matt Damon, Claire Danes, Jon Voight, and Danny DeVito.