Which 3 NCIS Characters Are Unlikely to Return for Season 21?

“NCIS” Season 21 is set to return in 2024, with key series regulars expected to reprise their roles, including Sean Murray, Wilmer Valderrama, Katrina Law, Brian Dietzen, Diona Reasonover, Gary Cole, and Rocky Carroll.

However, it’s unlikely that Mark Harmon, who played Special Agent Gibbs, will make a return to the show after his departure. While he remains an executive producer, he hasn’t shown interest in returning on-screen.

Emily Wickersham, who portrayed Bishop, left in the Season 18 finale, and her return in Season 21 seems improbable due to the show’s shortened season.

Fans have hoped for the return of Michael Weatherly’s character, Tony, since his exit at the end of Season 13. While there’s interest from Weatherly, a surprise return would require aligning many factors, including Cote de Pablo’s return as Ziva David.

Despite these absences, the show has kept Gibbs’s presence felt and left room for potential surprises in Season 21.