NCIS premiered on CBS in September 2003. More than 20 seasons later, Season 1 still hides details that feel huge on a rewatch and fuzzy in memory. Here are four worth digging up.
They cut a main character before Season 1 even started
Gibbs, Abby, Tony, and Ducky didn’t debut in “Yankee White.” They first showed up in two JAG episodes — “Ice Queen” and “Meltdown” — that doubled as a backdoor pilot.
Also there: Vivian “Viv” Blackadder (Robyn Lively), a former FBI agent who joined NCIS after her brother died in the USS Cole bombing. Determined, clumsy, revenge-driven. In “Meltdown,” she blows cover on a stakeout with Gibbs. The mission is salvaged; her future isn’t.
Viv never made the series. Show creator Don Bellisario told TV Guide Lively was “a little soft for this kind of role.” Kate Todd (Sasha Alexander) stepped into that seat instead. If you started with Season 1, Viv barely exists.
Season 1 is stacked with “before they were huge” guests
Rewatch with fresh eyes and the cameos jump out.
Terry O’Quinn (Lost’s Locke) plays Gibbs’ former CO in “Enigma.” Josh Holloway (Lost’s Sawyer) shows up as a cocky local sheriff in “My Other Left Foot.” Same episode: Dean Norris (Breaking Bad) as a Marine sergeant. In “Split Decision,” Bellamy Young (Scandal) plays an ATF agent pulled into an NCIS case.
Not the point of Season 1 then. A fun scavenger hunt now.
McGee and Abby were actually a thing
Tim McGee (Sean Murray) doesn’t arrive until mid-Season 1 — first in “Sub Rosa” — and he wasn’t meant to last more than an episode. Viewers and producers kept him. What a lot of fans forget: early on, he and Abby weren’t just banter partners. They dated.
The pairing was casual but real enough that Season 1 plays like it might stick. By Season 2 it cools. Occasional hints linger, then it’s friendship — and the romance mostly vanishes from the show’s memory.
The core cast already doesn’t quite match the characters you remember
Rewatches surface the drift. Gibbs starts gruff and funnier; later seasons lean heavier and quieter. Abby’s quirk is there from day one, then gets turned up hard. Tony is closer to Kate’s jab — “an X-rated Peter Pan” — than the sharper, more grounded agent he becomes.
Call it Flanderization or just long-running TV. Either way, Season 1’s team feels like a younger, looser version of the squad that carried the show for decades.
There’s no better time to go back to where it started — and notice what you forgot.
