Cast members from the CBS hit drama “NCIS” took part in a USO tour to Marine Corps Air Station Miramar in California on Sept 30.

The 3rd Marine Aircraft Wing gave actors Sean Murray, Wilmer Valderrama, Brian Dietzen and Duane Henry an up close tour of Marine Corps aircraft and the cast members enjoyed lunch with active-duty service members. Later, the group hosted a private question-and-answer session and treated Marines and their families to a screening of “NCIS” a few days after the show’s 15th season premiere.

“Anytime someone who’s world-famous stops by and thinks your job is cool, I think that’s pretty awesome,” Marine 1st Lt. Bryan Bernreuther told CBS News 8 in San Diego.

“It educates you on what’s important,” Valderrama said, referring to his experience interacting with Marines on the USO tour. “And now more than ever, we have to remind ourselves that we’re all part of the same family and we’re all waving the same flag.”

Check out some photos from the tour below:

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From left to right, Brian Dietzen, Duane Henry, Wilmer Valderrama, and Sean Murray get an up-close look inside a Marine CH-53 Sea Stallion at Marine Corps Air Station Miramar, California.

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‘NCIS’ stars pose in front of an MV-22 Osprey helicopter at Marine Corps Air Station Miramar during a USO tour in September.

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'NCIS’ stars Sean Murray, Wilmer Valderrama, Brian Dietzen and Duane Henry posed with some fans inside the Bob Hope Theater on Marine Corps Air Station Miramar.

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Sporting their new gifted flight jackets during a Q&A session on stage - Sean Murray, Wilmer Valderrama, Brian Dietzen and Duane Henry take a selfie in response to questions from the audience.

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From left to right 'NCIS’ stars Brian Dietzen, Duane Henry, Sean Murray and Wilmer Valderrama extended their thanks to Marines and their families during their USO tour to Marine Corps Air Station Miramar on Sept. 30.

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'NCIS’ stars Sean Murray, Wilmer Valderrama, Brian Dietzen and Duane Henry posed with some fans outside the Bob Hope Theater on Marine Corps Air Station Miramar.