Here are the biggest guest stars to pass through NCIS shows during the franchise's first 1,000 episodes. Abigail Breslin popped up in a season 2 episode back in 2004. This was after Signs but well ...

NCIS guest stars Sara Paxton and Sam McMurray had many viewers wondering about their characters. The December 2 episode was called Hardboiled. It served as NCIS Season 22, Episode 7.

The veteran actress appeared in an episode of 2 Broke Girls, Mom, Good Girls, Mike & Molly, and General Hospital. Diane Delano guest starred on NCIS Season 4, Episode 16. She played Dee Dee ...

Actress Laura San Giacomo plays Dr. Grace on NCIS, and she has become one of the longest-tenured supporting characters on the show. Her guest-starring appearances are often notable and lead to ...