9-1-1: Nashville, the highly anticipated next spin-off in the 9-1-1 TV universe, has confirmed its lead actor, and it's someone who isn't a stranger to a big procedural franchise.

It's been announced that Chris O'Donnell will be playing Captain Don Sharpe, described as a "rugged fire captain and rodeo rider who runs Nashville's busiest firehouse with his beloved son.

Don is also described as "a devoted husband and family man but he has his secrets."

chris o’donnell, ncis los angeles
CBS Photo Archive//Getty Images

Related: Best streaming services

Although he's appeared in two Batman films and Grey's Anatomy, O'Donnell is likely best known for playing G Callen in 14 seasons of NCIS: Los Angeles (and guest appearances as the character in Hawaii Five-O, NCIS: Hawai'i, and the main NCIS show).

No further Nashville cast has been announced at the current time, but we know that Ryan Murphy and Angela Bassett are among the team of executive producers.

What to Read Next

Last month, the spin-off 9-1-1: Lone Star came to an end after five seasons, with an episode featuring an asteroid hitting Texas and a narrowly avoided nuclear meltdown.

robe lowe, 911 lone star season 4
Fox//Getty Images

Related: Gritty detective show branded "very underrated" is leaving Netflix soon – don't miss out

Rob Lowe's character Owen Strand survived the episode despite a fake-out, but in an interview released after the finale aired, Lowe revealed he pitched an alternate ending where Owen died.

"Oh, I pitched the possibility of Owen going out in a blaze of glory 100%," he said.

"I pitched one of those amazingly emotional hero's walks where Owen dies and then he's given the hero's walk in the hospital and everyone's clapping."

9-1-1 airs on ABC in the US, while 9-1-1: Lone Star aired on FOX. Both are also available on Hulu in the US, and Disney+ in the UK. 9-1-1: Nashville is set to premiere later this year.

Headshot of Joe Anderton

Joe Anderton is a freelance news writer at Digital Spy, having worked there since 2016. In his time, he's covered a host of live events and interviewed celebrities big and small. A big fan of TV and movies both mainstream and obscure, Joe also enjoys video games and in particular PlayStation. Joe currently does not use Twitter, but he only ever used it to tell people to watch the film Help! I'm a Fish.