The character of Tobias Fornell (played by Joe Spano) was part of the very first episode of NCIS, but without a history with any of the team then. That was retconned as Spano kept appearing, with Fornell and Mark Harmon's Gibbs ending up going way back. And so the prequel, NCIS: Origins, has a rich history with which to play with Austin Stowell's Gibbs and the young Fornell (Lucas Dixon), who has now been introduced. (It's a relationship Stowell wants to explore.)

Dixon appeared in Episode 6 when Franks (Kyle Schmid) and Wheeler (Patrick Fischler) met with an FBI agent for intel on a case. That agent called over "Tobias" to share what he'd found, which the young man did while snacking on tacos, much to Franks' annoyance. He also rubbed Franks the wrong way for not thinking of the obvious fact that just because their person of interest had an alibi for a murder didn't mean he wasn't potentially buying intel from the killer.