Mark Harmon’s NCIS Gibbs Return Can Happen Before His Prequel

Mark Harmon is confirmed to return as Leroy Jethro Gibbs in a prequel series, but he can come back much sooner and to the primary NCIS show.

Before he returns for his prequel, Mark Harmon can reprise his role as Leroy Jethro Gibbs in the main NCIS show much earlier. After almost two decades as the face of the franchise, Harmon left during NCIS season 19 after a case brought him to Alaska. Having been on the air for so long, losing a major cast member isn’t new to the procedural when the actor exited. Over the years, Gibbs saw the departures of some of his best agents, including Kate Todd, Tony DiNozzo Jr., and Ziva David. Still, losing Harmon’s character is arguably the biggest one

That being said, since Gibbs simply retired from the force, the door remains open for his potential return. Granted that the FBI seems to be determined to take him down, it won’t be that difficult to elude him especially given the help of his allies. Harmon is actually already confirmed to step back into the shoes of his iconic character by narrating the upcoming prequel offshoot. The project is set to debut during the 2024-2025 TV season, but the actor can physically appear in NCIS season 21 for one important reason.