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.

Chris O’Donnell, best known for playing Special Agent in Charge Grisha “G” Callen on NCIS: Los Angeles, has lassoed the lead role on the forthcoming offshoot. He’ll play Captain Don Sharpe, “a rugged fire captain and rodeo rider who runs Nashville’s busiest firehouse with his beloved son,” according to the official character description.

Los Angeles alum Chris O'Donnell. The actor plays Captain Don Sharpe, the captain of Nashville's busiest firehouse, who serves alongside his son. This casting is quite similar to the leads of the previous 9-1-1 shows,