There's plenty of spoilers for "Castle" season 8 including a new character, investigator Hayley Shipton, who will surely add dimension to the already interesting storyline.

The character, described as "free-spirited and quick-witted," will be played by Toks Olagundoye of "Neighbors."

Showrunner Alexi Hawley dished season 8 spoilers of "Castle" to Entertainment Weekly as she said that Hayley Shipton is going to be a "dynamic, fun character."

"It's a voice that the show doesn't have," the showrunner said. "What's great about her is Castle [Nathan Fillion] has been investigating cases police-adjacent, so it's always about doing things the way police would."

"She doesn't do things that way, so that fun dynamic of, 'No, we break in rather than get a warrant,' is kind of fun."

Detective Ethan Slaughter, played by Adam Baldwin, will also be back this season as first reported by EW in a previous report.

"Baldwin first appeared in the fourth season as Detective Ethan Slaughter, a rough cop with crude methods that Castle (Nathan Fillion) did a ride along with in the episode titled 'Headhunters,'" said the article.

But Alexi Hawley was quick to add more "Castle" season 8 spoilers saying that Hayley Shipton won't be as crude as Ethan Slaughter.

"She's a little easier than Adam Baldwin [was] on him, but there's definitely an energy about her which is a lot of fun," he said.

Meanwhile, Beckett is now the new captain of the department, and that means Toks Olagundoye will have a lot more scenes with Nathan Fillion, another fast-talking character who acts first before thinking which should provide a lot of opportunities for the writers to have fun.

"We like the idea of her as a mentor to Alexis [Molly Quinn] in a way that Beckett has been, but because she's also Castle's wife, ultimately Hayley can play a little bit more of an older sister," the showrunner said.

As for Alexis, Alexi Hawley promised that "she's going to be more sophisticated" and more "grown up" this season.

Watch out for more "Castle" season 8 spoilers which will be published here when they come along.