Mark Harmon is set to reprise his role in NCIS: Origins, delving into his character’s early years within the organization. However, fans might see Harmon return as Gibbs sooner in NCIS season 21, particularly in an episode dedicated to bidding farewell to David McCallum’s character, Ducky Mallard.

Following McCallum’s passing, the CBS police procedural plans to honor the beloved medical examiner-turned-historian with a dedicated episode. The storyline will involve the team solving a case Ducky was working on before his demise.

Given Gibbs’ longstanding friendship with Ducky pre-dating the series, it’s only fitting for him to attend the planned funeral.

Fortunately, NCIS season 21 won’t need to heavily emphasize Harmon’s return, given his integral role in the franchise’s history. Instead, Gibbs can respectfully pay his respects at Ducky’s funeral without much fanfare.

It’s unnecessary for Gibbs to interact with other characters, including Tim McGee, despite their long-standing professional relationship. Gibbs’ primary focus is to honor his old friend and bid him a fitting farewell.