Sean Murray on ‘NCIS’.Photo:Sonja Flemming/CBS via GettyDespite being the longest-running cast member,Sean Murraydoesn’t quite feel safe in his standing onNCIS.As the crime fighting franchise gears up tohit 1,000 episodesacross its five shows, Murray, 46, exclusively tells PEOPLE that “even after 21 seasons” he doesn’t know where his journey onNCISwill lead.“I think we learned this with things that have happened on the show over the years… No one is quite safe,” he explains. “Obviously, being here 21 years, [I] have enjoyed, immensely, being a part of this show and continue to be incredibly grateful to be a part of this show, but you never know what’s going to happen.“Sean Murray on ‘NCIS’.Monty Brinton/CBS via GettyThough the actor doesn’t want to say “anything’s for certain,” he says things are “really good right now” and the cast is having a “good time” on set.“And I don’t think anyone is itching to go elsewhere at the moment,” he says.On Monday, April 15,NCISwill be celebrating its 1,000th episode. While reflecting on why he believesthe franchise has endured, Murray reveals that he believes the “quality” and care put into building the procedural had created a strong foundation for theNCISbrand to grow.The original cast of ‘NCIS’.Kevin Lynch/CBS via Getty Images"A really strong ship was built very early on, and the show developed and founded strengths in a different kind of way than most procedurals,” he says, adding that fans connected with the show and its characters “early on.“He continues, “It felt like a family, and I think that that family feeling and the world ofNCISis something that people really liked to be a part of.“Though Murray can’t put an exact finger on the franchise’s “secret sauce” for success, he says that formula has spread out to different series. Since the OGNCISdebut on CBS, the show has gone on to birth fourspinoffsin Los Angeles, New Orleans, Hawai’i and Sydney, Australia.“Everyone, respectfully, has had their own sort of slice of the pizza,” he explains of how the franchise has grown. “Everything’s been pretty unique, I think, so it’s really quite cool to see the way things have expanded.“Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer​​, from celebrity news to compelling human interest stories.NCISairs Mondays at 9 p.m. ET on CBS.

Sean Murray on ‘NCIS’.Photo:Sonja Flemming/CBS via Getty

The NCIS team looks for a motive behind the kidnapping and death of a famous heart surgeon, on the CBS Original series NCIS, Monday, April 22 (9:00-10:00 PM, ET/PT) on the CBS Television Network, and streaming on Paramount+ (live and on-demand for Paramount+ with SHOWTIME subscribers, or on-demand for Paramount+ Essential subscribers the day after the episode airs). Pictured (L-R): Diona Reasonover as Kasie Hines and Sean Murray as Timothy McGee.

Sonja Flemming/CBS via Getty

Despite being the longest-running cast member,Sean Murraydoesn’t quite feel safe in his standing onNCIS.As the crime fighting franchise gears up tohit 1,000 episodesacross its five shows, Murray, 46, exclusively tells PEOPLE that “even after 21 seasons” he doesn’t know where his journey onNCISwill lead.“I think we learned this with things that have happened on the show over the years… No one is quite safe,” he explains. “Obviously, being here 21 years, [I] have enjoyed, immensely, being a part of this show and continue to be incredibly grateful to be a part of this show, but you never know what’s going to happen.“Sean Murray on ‘NCIS’.Monty Brinton/CBS via GettyThough the actor doesn’t want to say “anything’s for certain,” he says things are “really good right now” and the cast is having a “good time” on set.“And I don’t think anyone is itching to go elsewhere at the moment,” he says.On Monday, April 15,NCISwill be celebrating its 1,000th episode. While reflecting on why he believesthe franchise has endured, Murray reveals that he believes the “quality” and care put into building the procedural had created a strong foundation for theNCISbrand to grow.The original cast of ‘NCIS’.Kevin Lynch/CBS via Getty Images"A really strong ship was built very early on, and the show developed and founded strengths in a different kind of way than most procedurals,” he says, adding that fans connected with the show and its characters “early on.“He continues, “It felt like a family, and I think that that family feeling and the world ofNCISis something that people really liked to be a part of.“Though Murray can’t put an exact finger on the franchise’s “secret sauce” for success, he says that formula has spread out to different series. Since the OGNCISdebut on CBS, the show has gone on to birth fourspinoffsin Los Angeles, New Orleans, Hawai’i and Sydney, Australia.“Everyone, respectfully, has had their own sort of slice of the pizza,” he explains of how the franchise has grown. “Everything’s been pretty unique, I think, so it’s really quite cool to see the way things have expanded.“Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer​​, from celebrity news to compelling human interest stories.NCISairs Mondays at 9 p.m. ET on CBS.

Despite being the longest-running cast member,Sean Murraydoesn’t quite feel safe in his standing onNCIS.

As the crime fighting franchise gears up tohit 1,000 episodesacross its five shows, Murray, 46, exclusively tells PEOPLE that “even after 21 seasons” he doesn’t know where his journey onNCISwill lead.

“I think we learned this with things that have happened on the show over the years… No one is quite safe,” he explains. “Obviously, being here 21 years, [I] have enjoyed, immensely, being a part of this show and continue to be incredibly grateful to be a part of this show, but you never know what’s going to happen.”

Sean Murray on ‘NCIS’.Monty Brinton/CBS via Getty

McGee (Sean Murray) and the team begin to worry about Abby when she becomes obsessed with a murder investigation, on “NCIS,” Tuesday, October 26 (8:00-9:00 PM, ET/PT) on the CBS Television Network.

Monty Brinton/CBS via Getty

Though the actor doesn’t want to say “anything’s for certain,” he says things are “really good right now” and the cast is having a “good time” on set.

“And I don’t think anyone is itching to go elsewhere at the moment,” he says.

On Monday, April 15,NCISwill be celebrating its 1,000th episode. While reflecting on why he believesthe franchise has endured, Murray reveals that he believes the “quality” and care put into building the procedural had created a strong foundation for theNCISbrand to grow.

The original cast of ‘NCIS’.Kevin Lynch/CBS via Getty Images

The cast of NCIS. Pictured from left to right: Brian Dietzen, Rocky Carroll, Pauley Perrette, Mark Harmon, Michael Weatherly, Emily Wickersham, Sean Murray and David McCallum

Kevin Lynch/CBS via Getty Images

“A really strong ship was built very early on, and the show developed and founded strengths in a different kind of way than most procedurals,” he says, adding that fans connected with the show and its characters “early on.”

He continues, “It felt like a family, and I think that that family feeling and the world ofNCISis something that people really liked to be a part of.”

Though Murray can’t put an exact finger on the franchise’s “secret sauce” for success, he says that formula has spread out to different series. Since the OGNCISdebut on CBS, the show has gone on to birth fourspinoffsin Los Angeles, New Orleans, Hawai’i and Sydney, Australia.

“Everyone, respectfully, has had their own sort of slice of the pizza,” he explains of how the franchise has grown. “Everything’s been pretty unique, I think, so it’s really quite cool to see the way things have expanded.”

Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer​​, from celebrity news to compelling human interest stories.

NCISairs Mondays at 9 p.m. ET on CBS.

source: people.com