The new promo teaser for Season 4 of Hawaii Five-O shines the spotlight on Chi McBride, who joins the cast this season.

McBride (Pushing Daisies) plays the role of SWAT Captain Lou Grover, a character who appeared on the original 1970s program. It was previously reported that McBride was only scheduled to appear in the first episode of the new season, but judging by the teaser it seems like his character will play a very substantial role on the show.

"The hottest team in paradise has a brand new gun," the video's announcer said. In the promo, Grover seems like a guy who means business but has quite the sense of humor about him.

"It's always fun to dig back into Five-0 mythology and resurrect a character," the show's executive producer, Peter Lenkov, said to Entertainment Weekly about McBride's character. "Recently transferred to Hawaii from Chicago, Grover isn't easily sold on Five-0′s tactics, referring to the task force as: 'McGarrett and his merry band of do-whatever-the-hell-they-want.' What Five-0 does conflicts with Grover's own style of law enforcement. And that creates good conflict, so prepare for some combustive tension between the two this season."

Season 4 will include a number of guest stars, such as Melanie Griffith and Nick Jonas. Griffith will be playing the role of Detective Danny "Danno" Williams' (Scott Caan) mother. Other guest stars include Rumer Willis, Terry O'Quinn, Carol Burnett, Jorge Garcia, Henry Ian Cusick and Rebecca DeMornay.

Season 4 premieres on CBS on Friday, Sept. 27. 

Watch the promo teaser here:

Tags: hawaii five-0 Season 4 CBS chi mcbride