Fringe star Joshua Jackson is rounding out the quartet of leads of Showtime‘s drama pilot The Affair. From playwright and writer/producer Sarah Treem and co-creator Hagai Levi, The Affair is an intense and intimate exploration of two marriages and an affair that disrupts them — with all of the complex consequences that result. It centers on Noah (Dominic West), a good husband and devoted father of four whose settled, comfortable world is about to implode when he meets Allison (Ruth Wilson) who he he thinks is his soul mate. Jackson will play Cole, a hard-edged cowboy married to Allison. Their emotionally charged marriage becomes even more complicated when Allison begins an affair with Noah. Maura Tirney plays Noah’s long-time wife. The Affair marks Jackson’s followup to Fox’s praised sci-fi drama Fringe, which ended its five-season run earlier this year. On the feature side, the former Dawson’s Creek leading man most recently starred in Stephen Frears’ Lay the Favorite and in Inescapable.