I was playing through the Umbara stretch of Star Wars Zero Company a few weeks ago when it finally landed on me.
The mission drops Captain Rex into your squad, and the game makes him a failure condition — if he dies, you restart. I wrote the whole thing up separately in my Deep Cover walkthrough, because the tactical side of that fight deserves its own article. This one is about the other thing I kept thinking about while I played it.
Because there I was, in a turn-based tactics game released in August 2026, carefully managing cover and line of sight for a character who was introduced in an animated movie in 2008 and who, if you believe what the canon now tells us, was also standing in the background of a movie released in 1983.
Nobody else in Star Wars has that shape. Not Luke. Not Vader. Not Ahsoka, and she’s the closest competitor.
So let me say the thing I’ve been circling for a while: Captain Rex belongs in the ten most important characters in the Star Wars timeline. Not one of my ten favorites — though he’s that too. Important, in the specific sense that if you pull him out of the story, large pieces of it stop working.
A note on how this works, because it matters. This is the first article in a series I’m calling The Case For. I’m not handing you a finished Top 10 and then justifying it backwards, which is how every list like this gets written and is also why they’re all boring. I’m doing it the other way around. Over the next stretch I’m going to write fifteen to twenty of these — one per candidate, each one making the strongest honest argument for that character and then taking the best shot at it I can — and only after they’re all on the table will I publish the actual Top 10 Most Important Characters in Star Wars and name which ten survived.
So nothing here is a coronation. Rex is a candidate. He’s a candidate I happen to think is close to unassailable, which is exactly why he goes first: if the standard I’m about to set can’t get Rex in, the standard is broken and I’d rather find that out now than in article nineteen.
What “important” has to mean
Before I make the case, I need to define the thing, because “most important Star Wars characters” lists usually just rank people by how much screen time they got in the movies. That’s a popularity list wearing a lab coat.
Here’s the standard every candidate in this series gets held to, Rex included. Same three tests, every article, no exceptions and no thumb on the scale:
- Span. How much of the timeline do they actually touch? Not cameos — presence.
- Causality. Does the story change if you remove them? Not “would I miss them.” Would the plot break.
- Thematic load. Does the saga use them to say something it can’t say any other way?
Most Star Wars characters clear one of those. The great ones clear two. Rex clears all three, and he does it from a position nobody designed him for — he started as a background soldier with a number for a name.
The Clone Wars: he’s how we learn the army is people
Rex enters as CT-7567, captain of the 501st Legion, second to Anakin Skywalker and working alongside Ahsoka Tano. On paper that’s a supporting military role in a cartoon.
What it actually becomes is the single most consequential piece of worldbuilding Dave Filoni ever pulled off. The prequels gave us a clone army as a plot device — a faceless, disposable solution to a manpower problem, grown on Kamino and pointed at the Separatists. The Clone Wars used Rex to make that army into a population.
Two arcs do most of the heavy lifting.
Umbara. Pong Krell takes command of the 501st and deliberately feeds them into a meat grinder, culminating in clones killing clones because their general lied to them about who was in the opposing armor. Rex is the one who has to decide whether following orders is the same thing as doing his job. The answer the arc arrives at — that a soldier bred to obey can still be responsible for what he does — is the moral spine of every clone story that came after it, and it’s the reason Umbara still gets referenced in new Star Wars projects nearly fifteen years later. Zero Company opens on Umbara’s shadow for exactly this reason.
Fives. ARC trooper Fives discovers the inhibitor chips, tries to warn everyone, and dies in Rex’s arms being treated as a man who lost his mind. Rex watches it happen and can’t do anything with it.
That second one matters more than any single Rex action, because of what it does to Revenge of the Sith. Before The Clone Wars, Order 66 was a scene where soldiers turn on their officers. After it, Order 66 is a hardware trigger in the skull of every man in that army, discovered by one of them, dismissed, and buried. The clones didn’t betray the Jedi. The clones were the second victim.
You don’t get that reading without Rex. He’s the witness the audience follows through it.
Order 66: the most important thing he ever does
The Siege of Mandalore is the payoff, and it’s where Rex stops being a great supporting character and becomes load-bearing.
The order comes down. Rex’s chip fires. He fights it — long enough to get one word out to Ahsoka. Fives. She puts it together, gets the chip out, and the two of them end up on a crashing Venator with a legion of their own brothers trying to kill them.
Then comes the part that earns him the list spot: they bury them. Ahsoka drops her lightsaber in the grave, and the final shot is a field of 501st helmets in the snow with Rex’s own helmet painted in Ahsoka’s markings.
That scene does something no other Star Wars story manages. It gives the Republic’s fall a cost that isn’t a Jedi’s. It makes the Empire’s founding an atrocity committed against its own soldiers. And it means that for the rest of the timeline, every stormtrooper, every garrison, every Imperial uniform carries a question the movies never asked: who’s actually in there, and did they choose this.
Pull Rex out and that scene has no one to anchor it. Ahsoka survives Order 66 alone, and it’s a Jedi escape story. With Rex, it’s the end of a friendship that the galaxy engineered in advance.
Here’s a detail I didn’t appreciate until I was writing this. In Zero Company, Deep Cover — the Rex mission — comes immediately after the chapter where Order 66 goes out. Bit Reactor could have put him anywhere in that campaign. They put him on the other side of Order 66, which is the only place he means anything. Fifteen years after The Clone Wars established it, a brand new studio building a brand new Star Wars story treated “Rex survives the order” as the load-bearing fact about him. That’s what an important character looks like from the outside.
The Bad Batch: the bridge nobody else could be
Here’s where the span argument gets unanswerable.
After Order 66, Rex goes underground and starts doing something genuinely unprecedented in Star Wars: he builds a resistance out of the Empire’s own army. He finds Clone Force 99 and gets their chips out. He pulls Gregor out of an Imperial facility. He works with Howzer, with Echo, with a growing network of clones who figured out — or were shown — that the thing in their heads wasn’t them.
The Bad Batch calls it the Clone Underground, and it runs for the entire back half of that show, searching for Mount Tantiss while the Empire quietly decommissions, imprisons, and experiments on the men who won its war for it.
Think about what that means structurally. The Rebel Alliance doesn’t appear from nowhere. Somebody had to be fighting the Empire in the years between the Republic’s fall and the Alliance’s formation, and Star Wars has spent a decade filling that gap in — Saw Gerrera’s partisans, the Lothal cell, Luthen’s network in Andor. Rex is the thread that runs from the Grand Army of the Republic directly into it.
He is, as far as I can tell, the only character in canon who fought for the Republic, was weaponized by the Empire, broke that conditioning, and then fought the Empire for the rest of his life.
Rebels: the living bridge
By the time Ahsoka sends the Ghost crew to find him, Rex is an old man on Seelos living in a beached AT-TE with Wolffe and Gregor, hunting joopa and not talking about any of it.
“The Lost Commanders” is a quietly enormous episode. It’s the first time canon puts a Clone Wars veteran in a room with the generation that will blow up the second Death Star, and Ezra Bridger’s reaction is the correct one — he’s meeting a piece of history he only knows as a story. Kanan’s reaction is the other correct one. Kanan was a Padawan on the day Order 66 came down. He doesn’t want this man anywhere near his crew.
That tension is the whole value of Rex as a character in that era. He’s the only person alive who can be both: the thing that killed the Jedi, and the thing that’s going to help end the Empire.
He joins the Phoenix Cell, fights at Atollon, trains rebel soldiers who were children when he was already a veteran, and is standing on Lothal when it’s liberated.
Endor: the payoff, and the one honest caveat
Now the part everybody wants to talk about.
The Rebels series finale ends with an epilogue narrated by Sabine, walking through what happened to everyone. And it states plainly that Rex fought at the Battle of Endor. That’s canon. The old clone captain from Kamino was on the forest moon, helping take down the shield generator, while Luke Skywalker was upstairs refusing to kill his father.
Here’s the caveat, and I’d rather give it to you straight than oversell this.
For years, fans had pointed at a white-bearded Rebel commando visible for about two seconds in Return of the Jedi — a character identified in old Legends material as Nik Sant — and argued that was Rex. Filoni fueled it hard. He said on record, back around the Rebels Season 2 premiere, that he really does think Rex is that guy on Endor. Then Rebels Season 4 put Rex in a camouflaged uniform that is, let’s be honest, that guy’s uniform.
What Lucasfilm has never done is publish a line that says “the background soldier in that frame is CT-7567.” So the precise state of play is this: Rex at the Battle of Endor is confirmed canon. Rex being the specific man in that specific shot is confirmed by every creative decision Filoni has made and has never been formally stamped.
Honestly? The distinction barely matters to the argument. A character created for a 2008 animated series was retroactively placed inside the climax of the 1977–1983 original trilogy, and the people who run Star Wars did it on purpose. That’s not something you can say about anyone else.
RexHe keeps getting cast forward
The last piece of the case is the one that convinced me to write this now.
Important characters in a finished franchise stop accumulating appearances. Rex hasn’t.
He made his live-action debut in 2023 in the Ahsoka series, in the Siege of Mandalore flashback in “Shadow Warrior” — voiced, for the first time, by Temuera Morrison rather than Dee Bradley Baker, which is its own kind of milestone for a clone character. He’s in Tales of the Jedi. He’s in the comics.
And then there’s Galaxy of Heroes, which gives me the cleanest piece of evidence in this whole article — and it’s a piece of evidence that exists for business reasons, not storytelling ones.
Galaxy of Heroes has two separate Captain Rex units. There’s CT-7567 “Rex,” the Clone Wars captain in Phase II armor who runs with the 501st. And there’s Captain Rex, the older veteran, the one who came out the other side of the Empire and kept fighting. Two units. Two kits. Two separate farms.
Plenty of characters have multiple versions in that game, so on its own that proves nothing. What matters is why these two exist. Most duplicate units in SWGoH are the same person at slightly different moments — a different outfit, a different rank, a few years apart at most. The two Rexes are separated by roughly two decades of in-universe time and by the single largest political rupture in the saga. CG didn’t build a second Rex because they wanted a new costume. They built one because the first one couldn’t represent the second half of his life.
That’s the span argument, made by a monetization team that was not trying to make a point about canon. If you’re building either version, I’ve got the full breakdown in my best mods for Rex guide, and he shows up on the 501st side of the Order 66 raid as well.
Ask yourself how many Star Wars characters would need two units for that reason. I can think of Ahsoka, and I’m struggling after that.
And then there’s Zero Company, where Bit Reactor and EA put him in the final pre-launch trailer for roughly one second and the YouTube comments turned into a party. I went back and looked: a huge share of the top comments on that trailer were about Rex, on a trailer that was also selling a brand-new game with a brand-new cast and a confirmed Anakin Skywalker appearance. One second of a clone trooper outdrew all of it.
That’s not nostalgia. That’s a character the audience treats as a fixed point.
The case against Rex
I’d rather make this argument honestly than win it cheaply, so here’s the strongest version of the other side.
Rex is not a protagonist. He has no Force sensitivity, no family relationship to the Skywalkers, no throne, no prophecy. He does not make a single decision that changes the outcome of a film. The Empire rises whether he fights it or not. The Death Star blows up whether he’s in those trees or not. By a strict “would the plot collapse” test, you can remove Captain Rex from Star Wars and every movie ends exactly the same way.
That’s true, and it’s the single hardest objection anyone in this series is going to face — several of the candidates I’ve got lined up will fail on it outright.
My answer for Rex is that the test is aimed at the wrong target. A list of the ten most important characters in the Star Wars timeline — which is what I’m building — is not a list of the ten people who most affected the plot of nine films. It’s a list of the characters who hold the timeline together. Who make separate eras read as one story instead of six disconnected products.
By that standard Rex isn’t a borderline case. He’s one of maybe three characters who do that job at all.
How the rest of this series works
Fifteen to twenty candidates get an article like this one. Each gets the same three tests, the same honest counterargument section, and the same refusal to grade on nostalgia. Then the Top 10 goes up and ten of them make it.
That means most of the people I write about in this series are going to lose. That’s the point. A list where every name was obviously going to be on it isn’t a list, it’s a consensus, and you already know what the consensus is. The interesting part of a Top 10 is the cuts — the character who clears two of the three tests and misses, the one everyone assumes is automatic and isn’t, the one nobody expected who argues his way in on span alone.
Some entries are going to be formalities. Anakin gets an article and Anakin makes it, and we both know that going in. Others are going to be genuine coin flips that I won’t resolve until all the arguments are written and I can line them up against each other.
And if you think I’m about to leave somebody out, tell me now rather than after the list is published, because the whole reason for doing it in this order is that the arguments come first and the ranking comes last.
Rex is the entry I expect the least pushback on from anyone who’s watched the animated shows, and the most from anyone who hasn’t. Which is sort of the point of starting here.
Bottom line
Captain Rex was created as a number. He ends up being the character who connects the Republic to the Empire to the Rebellion, who turns the clone army from a plot device into a tragedy, who gives Order 66 its victims and the Alliance its oldest soldier, and who was quietly written into the Battle of Endor twenty-five years after that scene was filmed.
In 2026 he’s still being added to new Star Wars, and I’m still being told a mission will fail if I let him die.
That’s the case. Fourteen to nineteen more of these to go before the Top 10 gets named — and if Captain Rex somehow isn’t on it when I publish, I’m going to owe you a much better explanation than this article did.
Sources and further reading
- StarWars.com databank — Clone Captain Rex
- Star Wars Rebels series finale, “Family Reunion and Farewell” — epilogue confirming Rex at the Battle of Endor
- Dave Filoni, Star Wars Rebels Season 2 premiere remarks on Rex at Endor (via SlashFilm)
- Star Wars: The Bad Batch Seasons 1–3 — the Clone Underground
- Ahsoka, “Part Five: Shadow Warrior” — Rex’s live-action debut, voiced by Temuera Morrison
- Star Wars Zero Company final trailer, August 2026 (Bit Reactor / EA)