To superhero fans, Chris O’Donnell is no doubt best known as Dick Grayson/Robin in Joel Schumacher’s Batman Forever and its pun-filled sequel. But for network TV fanatics, the actor will always be NCIS: Los Angeles ’ Special Agent Grisha Callen (even if it took forever to learn what his G.

A new 9-1-1 spin-off has its leading man. Chris O’Donnell has joined the 9-1-1: Nashville cast. The former NCIS: Los Angeles star had been taking a break from television following the cancellation of his show.

Chris O’Donnell, who starred for 14 seasons as G. Callen on NCIS: Los Angeles, is moving to Music City for his next leading role on the Ryan Murphy/ABC spinoff, 9-1-1: Nashville, Deadline reports.