Leroy Jethro Gibbs (Mark Harmon) and his NCIS crew are coming back to solve some more cases next season!

Tony DiNozzo 'On The Run' With Admiral's Daughter Before Finale?

Michael Weatherly (Tony DiNozzo), Sean Murray (Timothy McGee), Pauley Perrette (Abby Sciuto), David McCallum (Dr. Donald Mallard) and Rocky Carroll (Leo Vance) are also signed to return for season 12 as well as season 13, TVLine.com reported. Co-stars Brian Dietzen (Jimmy Palmer) and newcomer Emily Wickersham (Ellie Bishop) are working on a “different contract cycles.”

There’s a good chance McGee’s girlfriend Delilah is also coming back as executive producer Gary Glasberg previously teased.

PHOTOS From The NCIS Season 11 Finale

"They've got a decision to make," he told TVLine. "And then we'll have to see where that takes us moving into Season 12."

In an April episode, McGee told Delilah that DiNozzo informed him about the job in Dubai. He encouraged her to take it if the opportunity is one she really wants. Delilah responded that she'd only accept the offer if their relationship would survive the long distance. McGee then gave her a spare key to his apartment. This means fans will probably get to see the love birds next season too.

In the meantime, fans will see an emotional season 11 finale tributing Ralph Waite, who passed away in February. He recurred on the CBS show as the father of Gibbs.

During May 13's episode, Gibbs will find out about his father's death and will have to choose whether to continue with a case or go back home to prepare for the funeral. Gibbs receives some advice Vance, who tragically lost his wife a year ago. Vance insists that Gibbs leaves his work at D.C. and head to Stillwater, Pa.

"It's a nice episode, it's an emotional episode, it's an informative episode and it gives people some closure,” Glasberg told TVFanatic.com.

Tags: NCIS