As one of TV’s longest-running shows, NCIS has seen its fair share of character departures, leaving fans questioning why beloved figures like Abby left the team. While some exits have been temporary, others have been permanent, sparking both nostalgia and controversy among viewers. Since its inception in 2003, NCIS has solidified its place as a staple in the CBS lineup.
The cast and characters of NCIS have played a pivotal role in its enduring success, attracting millions of viewers over its 20+ seasons. Originating as a spin-off of the popular show JAG, NCIS has spawned successful spin-offs in Los Angeles, Hawai’i, and beyond. While the show’s numerous plots and twists have captivated fans for nearly two decades, it’s the characters that truly resonate with audiences. However, the reasons behind Mark Harmon and other actors leaving NCIS remain unclear.