EXCLUSIVE: Tyler Ritter is following in the footsteps of his father, the late John Ritter, with a starring role on a multi-camera comedy. Tyler has been cast as the lead in CBS’ new pilot for The McCarthys, from Sony TV and Will Gluck’s Olive Bridge Entertainment. The comedy is being retooled as multi-camera after shooting a single-camera pilot last season. Written/co-executive produced by Brian Gallivan, The McCarthys revolves around a big, sports-crazed Irish Catholic clan in Boston and the gay son (Ritter) whose greatest sin is not his sexuality but his desire to spend less time with his family. This marks the biggest role to date for Ritter whose father toplined such sitcoms as Three’s Company and 8 Simple Rules. Tyler’s older brother, Jason Ritter, already has several series under his belt, including The Event and Parenthood. Tyler is repped by UTA and Principal Entertainment.