Jerry O'Connell was the last minute addition, being cast on the eve of the show's production start and right after Sendhil Ramamurthy dropped out.
Sendhil Ramamurthy is no longer attached to NBC's pilot "Rex Is Not Your Lawyer" and has been replaced by Jerry O'Connell. The character which O'Connell will be tackling would be an ambitious but "good-natured" lawyer who is friends with Rex and is secretly in love with Rex's fiancee.
Ramamurthy bowed out of the project because of scheduling conflicts just days after his participation was announced. According to Hollywood Reporter, Ramamurthy had made it clear that his already-running show "Heroes" will be his priority should both shows end up on NBC's schedule next season.
Beside O'Connell, "Rex Is Not Your Lawyer" also stars David Tennant as top notch lawyer Rex Alexander who begins developing panic attacks. He switches job to mentor clients so that they could present themselves well during court. There are also the likes of Abigail Spencer and Jeffrey Tambor as regulars, and Lindsay Kraft and Cleo King as recurring cast.
Production has been kicked off with David Semel signed to be the director of the pilot. NBC however, has not mentioned any premiere date.