The hit TV seriesNCIShas been around since 2003, with 18 seasons to date.

Since then, the drama has gone through some minor and significant changes.

With its success, it has captured the hearts of fans from all over the world.

Sean Murray smiles at the camera

It was just going to be an episode."

However, he seemed to fit the whole team.

“The chemistry was there from the first episode.

Sean Murray posing and smiling at the camera

A few episodes later, Sean became a regular.

He’s become our rock.

And when we have those difficult dialogue scenes, we give it to Sean” (viaCheat Sheet).

In an interview withStudio 10, Murray talked about his new diet and binging on food during filming.

In 2010, several fans also paid attention to his voice.

The resident geek’s gentle-sounding voice changed to a raspy growl.

TheNCISstar has also quit smoking which can be another factor of his change in voice.

Other fans thought of the change as part of the show.