In Brief
- Mark Harmon departed from NCIS to refresh his acting career.
- The character Gibbs was succeeded by FBI Agent Alden Parker in season 19.
- Gibbs’s farewell episode was poignant, reflecting on themes of loss and family.
NCIS has captivated audiences since its debut on CBS in September 2003, showcasing a wide array of intricately developed characters. Among them is the charismatic Special Agent Leroy Jethro Gibbs, portrayed by Mark Harmon. Like other long-standing series such as The Rookie and Chicago P.D., NCIS continues to deliver suspenseful and engaging stories that resonate with fans.
While viewers cherished Gibbs’s ability to unravel mysteries and inspire those around him, his departure from the series left a noticeable void. Fortunately, the transition in leadership proved impactful, and Gibbs’s final episode resonated with audiences on an emotional level.
What Led to Gibbs’s Replacement on NCIS?
Mark Harmon opted to leave NCIS primarily to rejuvenate his acting career. During a special feature on the season 19 DVD, he elaborated on his decision, stating, “What has always drawn me here is the character I play and to keep it fresh and to keep it challenging.” Harmon emphasizes the importance of evolving and pursuing new challenges in his career.
In a 2024 appearance on The Kelly Clarkson Show, he shared insights into the demanding schedule of working on NCIS, saying, “I think for the longest time, I was just tired. Part of taking the job was being home with a young family, not traveling so much…”
Gibbs’s role was ultimately taken over by FBI Special Agent Alden Parker, played by Gary Cole, in season 19. Much like prominent characters from other series, Parker made a notable entrance into the NCIS narrative, embodying qualities similar to those of Gibbs.
Parker’s debut occurred in season 19, episode 2, titled “Nearly Departed,”where he quickly established himself as a capable, quick-witted agent. He mirrors Gibbs’s toughness and work ethic while cultivating an environment of motivation. Although replacing a fan-favorite character like Gibbs poses significant challenges, Cole successfully portrays this new yet familiar character, aligning with NCIS’s tradition of strong, relatable leads.
Gibbs’s Last Episode on NCIS
The last episode featuring Leroy Gibbs is season 19, episode 4, titled “The Great Wide Open.” Following an investigation in Naktok Bay, Alaska, Gibbs finds solace in the slower pace of life in the small town. He reflects on the tragic losses of his wife Shannon and daughter Kelly, whose memory deeply affects him. This poignant narrative parallels storylines from other series, illustrating the enduring impact of family loss.
Though saying goodbye to a long-term character can be bittersweet for any actor, Harmon expressed satisfaction with Gibbs’s concluding chapter. He remains involved in the NCIS franchise, notably as the narrator of the prequel series NCIS: Origins, which launched in September 2024. This series explores a younger Gibbs, played by Austin Stowell, embarking on an exciting journey in law enforcement, much like the captivating narrative seen in Dexter: Original Sin.