NCIS Season 23 is packed with returning characters—and McGee’s son Mateo is next on the list.
Patrick Keleher will reprise the role later this season after Mateo’s introduction earlier in the year revealed a deeply personal twist in McGee’s past. The storyline briefly paused as the series focused on the shocking death of Director Leon Vance, but recent episodes confirmed McGee is still working to connect with his newly discovered son.
Mateo’s return is expected shortly after the upcoming two-episode event featuring LL Cool J’s Sam Hanna, whose high-stakes storyline will dominate the next chapters.
With just a few episodes left before the finale, the show appears ready to bring McGee’s family arc back into focus—offering viewers a closer look at how father and son begin building a relationship after nearly two decades apart.