This page is for tropes pertaining to the Red vs. Blue characters who are part of the Blood Gulch Crew. All spoilers for the first fifteen seasons will be unmarked below.
The Blood Gulch Crew
Commonly referred to as the Reds and Blues, the Blood Gulch Crew is a self-made faction consisting of the Red and Blue simulation trooper teams originally stationed in Blood Gulch, along with other individuals who joined them later on. Despite an intense rivalry and mutual dislike between the members of both groups initially, they have teamed up countless times to defeat enemies that would normally be out of their league. Because of their actions, many see the Blood Gulch Crew as some of the greatest soldiers and heroes in the galaxy, even though they self identify as "idiots."
- 24-Hour Armor: Almost all of them are never seen without their armor, barring Washington and Carolina (and in Wash's case, we never actually see his face). The few times anyone else does take their armor off, it's never shown on-screen.
- Anti-Hero Team: They're all a bunch of idiotic Jerkasses. The nicest people of the group - Donut, Caboose, Doc, and Lopez - aren't that helpful either. The former two is because they're probably the dumbest members, Doc is because he's an Actual Pacifist, and Lopez is because almost no one can understand him (and the few who can either can't translate for him well or won't do it out of apathy).
- Badass Crew: Several levels had to be taken and it's obscured by their quirkiness, but by Seasons 8 and beyond, the Blood Gulchers most definitely count. True, they mainly succeed through a combination of sheer luck and being severely underestimated but it doesn't matter how they kick your ass. They can and they will.
- Badass Normal: With the exception of Church, Tex, Epsilon, Simmons, and Carolina, the Reds and Blues are all just "ordinary" people. However, they've gone up against terrifyingly dangerous opponents like the Meta and even gods like Chrovos & Genkins, and yet have always come out on top.
- Bunny-Ears Lawyer: All of them to some point, having slowly grown into the role over the years. By the end of Season 13 they have most definitely become proper soldiers, albeit ones with very quirky and unconventional behavior.
- Character Focus/Deuteragonist: While the series is ultimately an Ensemble Cast, each season/arcnote has a single member (or a few) of the Reds and Blues (and, by extension, their allies) that can be roughly described as the true "protagonist" of that season/arc, with the story being centrally focused on them/mostly following them and their Character Development. It roughly goes like the following:
- Seasons 1-5: Alpha-Church as the protagonist, with Tex as the deuteragonist and Tucker as the tritagonist.
- Out of Mind: Tex as the protagonist.
- Recovery One: Wash as the protagonist.
- Season 6: Wash as the protagonist and Alpha-Church as the deuteragonist.
- Season 7: Caboose as the protagonist, with Simmons as the deuteragonist and Epsilon-Church as the tritagonist.
- Season 8: Epsilon-Church as the protagonist, with Epsilon-Tex as the deuteragonist and Wash as the tritagonist.
- Seasons 9 & 10: Carolina (in the flashback sequences along with Season 10's present-day storyline) as the protagonist, Epsilon-Church (in both the Epsilon Unit and the present-day storyline) as the deuteragonist, and Tex as the tritagonist.
- Season 11: Wash as the protagonist, with Tucker as the deuteragonist and both Caboose & Simmons as the tritagonists.
- Season 12: Tucker as the protagonist, with Epsilon-Church as the deuteragonist and both Carolina & Wash as the tritagonists.
- Season 13: Epsilon-Church as the protagonist, with both Wash & Carolina as the deuteragonists and Tucker as the tritagonist.
- Season 15: Dylan Andrews as the protagonist and Grif as the deuteragonist.
- Season 16: Grif as the protagonist and Donut as the deuteragonist.
- Season 17: Donut as the protagonist, with Wash as the deuteragonist and Carolina as the tritagonist.
- Classical Antihero: They are all seriously flawed individuals who spend most of their time bickering with each other, but they still prove to be heroic and noble when push comes to shove.
- Confirmation Bias: InUniverse - They often suffer from this both individually and collectively. It was most visible during the second half of The Blood Gulch Chronicles, where they are utterly convinced of having traveled forwards in time and they come up with far-fetched explanations for everything around them, even when there were much simpler - and more correct - explanations that didn't involve time-travel.
- Crouching Moron, Hidden Badass: They're all some shade of either a moronic Jerkass or an utter weirdo, but are still surprisingly competent in battle.
- Dysfunction Junction: While Caboose is easily the craziest, they all have their own wide variety of psychological hangups, ranging from garden-variety PTSD (i.e., Sarge, Church, Wash, and Carolina) to suicidal tendencies (as seen with Wash, Church, and Kaikaina/Sister) and including intense self-loathing issues (i.e., Church, Grif, Simmons, Tucker, and Wash). Heck, poor Doc even developed an Ax-Crazy Split Personality due to the events of The Chorus Trilogy.
- Enemy Mine: The first few times the Reds and Blues worked together were to fight a common enemy (usually Omega).
- Fire-Forged Friends: Especially evident in the seasons from Reconstruction onward, but the various conflicts that the Reds and Blues of Blood Gulch go through outside of their own personal war with each other have, by the time of Season 10, made them into a combined Badass Crew, even cheerily complimenting the members of opposing "teams" and acting as actual friends.
- Foil: To the agents of Project Freelancer. Whereas the Freelancers were the best of the best, battle hardened soldiers, and some of the most elite fighters in the UNSC, the Blood Gulch Crew were low level recruits pulled from the worst ranked soldiers they could find and were selected to only help the Freelancers test their equipment. The Freelancers were trained to work as a unit, and have each others backs, whereas the Reds and Blues were specifically created to be at odds with one another. However, at the end of the day, the Freelancers succumbed to infighting and corruption, with many of their number turning and even killing one another for personal gain, whereas the Blood Gulch Crew have managed to overcome their animosity, putting aside their differences for a common goal, and do good on an almost galactic scale.
- Friendly Enemy: Even in the earlier seasons, it was only really Sarge and (arguably) Church who were that dedicated to defeating the other team. However, this trope is most obvious from the second half of Recreation onward, where the teams essentially bury the hatchet permanently and spend more time being an extremely messed-up and vitriolic makeshift family that occasionally still shoots at each other for old times' sake than actual enemies.
- Horrible Judge of Character: Most of them made the mistake of trusting the Blues and Reds, even though they were acting pretty suspicious from when they first met. Eventually, they do realize that the Blues and Reds are up to no good and put a stop to them.
- Iron Butt Monkey: Virtually every one of them has been subjected to Amusing Injuries and attacks that would've killed almost anyone else, though Grif, Wash, and Donut are probably the most noteworthy examples. To quote the fans, the Reds and Blues don't so much as "win" as "fail upwards."
- Living Legend: By the time they reach Chorus, they're well-known for having taken down Project Freelancer, and both factions involved in the Chorus Civil War believe that they're some of the galaxy's greatest soldiers.
- Pinball Protagonist: Calling them "reactive protagonists" would be stretching for a compliment, honestly. When left to their own devices, the most they'll instigate by themselves is childish bickering. They start to become more proactive from Reconstruction forward, particularly when more competent people like Washington or Carolina are leading them.
- Polka Dork: Their Warthogs have a tendency to play cheesy Mexican polka (heavily implied to be Lopez's doing, given he's even hummed the song once).
- Primary-Color Champion: Although they're not the most shining examples of heroism and have varying shades of armor colors, they're well-known for their heroic efforts and heavily associated with red and blue.
- Seinfeldian Conversation: They've all started and/or participated in one at least once. The fact that the first non-violent interaction between the two teams was a two hour debate over whether or not their current situation was "ironic" should tell you something.
- Spanner in the Works:
- They were mere simulation troopers, essentially unknowingly low-level operatives of Project Freelancer. Their actions in The Recollection (Reconstruction in particular) caused the Project to be disbanded.
- Their antics aboard the UNSC Hand of Merope caused the ship to rip itself in half, saving them from being boarded by the Space Pirates. Furthermore, their involvement in the Chorus Civil War derailed Felix and Locus' plans to eradicate its population, culminating in the galaxy-wide revealing of UNSC Oversight Sub-committee Chairman and Charon Industries CEO Malcolm Hargrove's corruption.
- Superior Successors: To their Psycho Prototypes, the Blues and Reds.
- True Companions: Overtime they became this, to the point that the "war" is just a way for them to pass the time.
- Teeth-Clenched Teamwork: More prevalent in the earlier seasons, but even in the modern seasons the Reds and Blues can find themselves on the verge of killing each other over minor disagreements.
- Took a Level in Badass: It's slow but steady and they still are (largely) a bunch of bumbling morons, but they ultimately show themselves to actually be pretty effective soldiers in combat in the "modern day" of the series. For example, they go from seeing an army of incredibly slow-moving robots as a serious threat during the Blood Gulch Chronicles to effortlessly storming the Blues and Reds' volcano base on Earth during the finale of Season 15.
- Unluckily Lucky: Virtually all of the Reds and Blues seem to have terrible luck, and yet things still seem to work out for them surprisingly well. For instance, as alluded to above, their dumb actions aboard the Hand of Merope actually ensured their survival.
- Unsympathetic Comedy Protagonist: A good number of them fall into this at times, some more than others, though they're never completely unsympathetic.
- Unwitting Pawns:
- Initially to Project Freelancer, as they were assembled as part of a Forever War to serve as a cover for the Alpha A.I.'s location along with testing the abilities of their Agents (such as Wyoming).
- To both Felix and Locus, who wanted to use them to engineer a total massacre between the Federal Army and the New Republic on Chorus.
- They played this role once again to Chrovos, an ancient time god who gave them time machines to wear the fabric of reality thin and set him free. However, they wise up to it more quickly this time around, though Donut continues to side with him even after knowing the truth. Unfortunately, they all still end up playing into his hands in the Season 16 finale.
- Vague Age: Aside from Carolina (who is roughly 34 during the events of The Chorus Trilogy), no concrete ages have ever been given to them.
- Vitriolic Best Buds: They may constantly bicker, insult, and even injure each other, but they still dearly care for each other and will quickly try to crush anyone who actually wants to murder them. For instance, while Church literally tries to snipe Caboose when the latter meets up with him in Reconstruction, he also yelled out in genuine anguish when he was Forced to Watch Caboose get killed by Wyoming/Gamma in two of the Alternate Timelines created in "Same Old, Same Old".
- Weapon of Choice: Aside from specific character examples like Sarge and Caboose (see the Character pages), the Teams' default weapons are the Magnum pistol throughout the whole series and either the MA5B Assault Rifle when using the Halo: Combat Evolved engine or the BR-55/85 Battle Rifle from Season 3 onwards.
The RedsFor information on the Blood Gulch Reds, see the Red Team page.
The BluesFor information on the Blood Gulch Blues, see the Blue Team page.
UnalignedThe members of the group who are neither Red nor Blue.
A member of Project Freelancer and Allison and the Director's daughter. She's mentioned by name a few times during the earlier seasons, and first appears in person in Season 9. According to the ranking board, she's the best Freelancer at the time the series starts. She's often placed in command of the other Freelancers on missions, or used to bail out her less experienced compatriots. She has a coldly professional dynamic between her and the other members, but seems to treat Agent York as an equal and even speaks to him with some twinges of affection.
After Agent Texas arrives in Project Freelancer and usurps Carolina's position as the top Freelancer, Carolina begins to feel jealous. Her competitive nature leads her to train more and eventually get two A.I. implanted into her, hoping that she would be able to beat Tex. But not only is she still unable to beat her, her jealousy along with the A.I. in her head causes her to snap, leading to her becoming the Meta's first victim.
Shows up alive and well in the present timeline, recruiting the Blood Gulch crew and Washington to help her kill the Director. Having survived her encounter with the Meta, she's become imbittered and hostile, only thinking of the Blood Gulch Crew as tools to help her find Epsilon and the Director. She is hostile at every mention of Tex and, when she encounters the Tex-bots made by the Director, tries too hard to beat them and fails again. Luckily, the Blood Gulch Crew saves her, leading to her decrease in hostility, eventually deciding that killing the Director is pointless.
She and Epsilon leave the Crew to investigate the Space Pirates on Chorus, returning when the Crew gets involved in their plans. Carolina is stabbed in the leg by Felix, thus hampering her fighting ability. After a few losses, Carolina begins to lose her confidence and starts gathering armor enhancements.
- The Ace: She's known as Number One and is the absolute best Freelancer in the project... at least until Tex shows up.
- Action Girl: Almost as much as Tex. Too bad Tex beat her on the score board.
- When she tries to loosen up in "Along Came A Spider" during Season 13, and fails miserably.Church: (after Tucker's filled up their Warthogs with gasoline) Oh, that was fast. You filled up our car too?
Tucker: Yeah, I gave it to both of them. Bow-chicka bow-
Carolina: (at the same time as Tucker) Bow-chika-bow... what? That's the joke, right?
Tucker: Did she just say my thing?!
Caboose: Um, no Tucker. It's "Hey chicka bum bum." Awkward.
Carolina: (to Church) You said to loosen up!
Church: Just a little...too loose. Just... tighten it back up a little there.
Tucker: (off-screen) I feel violated!
- Comes back in "Previously On" during Season 15. In a period of time that included Caboose getting trapped in the Upside-Down, an army of evil robots attacking dinosaurs, the rest of the Reds and Blues constructing a water park (and Donut then burning it down), and Sarge's "War on Gravity" among other shenanigans, Carolina thought that Wash growing a beard and Grif convincing Simmons that Game of Thrones really happened were the most noteworthy things to happen since they arrived. Additionally, she joined a band with Tucker, Grif, and Caboose, and did it just to watch them squirm at her awful singing voice. She also wanted Grif to teach her how to become "the best at being lazy."
- When she tries to loosen up in "Along Came A Spider" during Season 13, and fails miserably.
- Always Second Best: To Tex from the end of Season 9 and throughout Season 10, much to her growing frustration and rage. Tex utterly dwarfs Carolina when it comes strength, speed, intelligence, stealth, marksmanship, weapons, skill, and just about everything that made them Freelancers. At the end of Season 10, Carolina finally gets her long awaited chance to fight Tex one-on-one, and while she does noticeably better than anyone else who's ever tried before, it's still painfully clear that she was losing the fight, albeit keep in mind it was not a one-on-one fight as she's fighting multiple clones of Texas and had already killed over 20 of them so it was more of one-on-fifty. In Episode 21 of the same season, she finally acknowledges this. The implication that she's the Director's daughter makes this even Harsher in Hindsight, changing our understanding of the dynamic from not just professional rivalry between soldiers, but also a personal grudge between mother and daughter over her father's clear preference. Is it any wonder she was so desperate to prove herself?
- Ambiguously Evil: The Reds and Blues consider her a time bomb just waiting to go off in Season 10 until Episode 21.
- Anti-Hero: Once Tex shows up, and Carolina becomes obsessed with beating her, she starts sliding down the scale.
- Art Shift:
- Her armor's been modified for Season 10 allowing her to be depicted in the Halo 3 engine with the rest of the cast. When they start using Halo 4, she wears a Recon helmet, since her original Rogue helmet was heavily redesigned in that game.
- Due to the lack of both Recon and Rogue helmets in the Halo 2 engine, her appearances in Singularity set during The Blood Gulch Chronicles have her in "normal" tan armor with aqua-accents on the shoulder pads.
- The Atoner: Becomes one near the end of Episode 22 of Season 10 when she and Epsilon decide to try and improve the world as well make up for their past mistakes by Walking the Earth to help dismantle what remains of Project Freelancer's equipment.
- Bad Boss: The Blood Gulch Crew are very concerned that present day Carolina may be one of these. For good reason, too. She confirms their fears when she orders the sim troopers to be cannon fodder to buy her time for her revenge plan, and pulls a gun on Tucker when he talks back to her. Everyone, including Wash, takes issue with this and ditches her. She thankfully improves and becomes a Benevolent Boss after her return in Season 12, though.
- Bait-and-Switch: Her first appearance plays up her resemblance to Tex before The Reveal in Episode 4 of Season 9. Though eagle-eyed viewers can make out her name on the leaderboard the episode prior to The Reveal.
- Bare-Fisted Monk: Throughout Season 9 and at times in Season 10, she's shown to be a very good combatant at close combat.
- Berserk Button:
- Being compared to Tex.
- Talking about Maine/Meta is another one.
- Big Damn Heroes: Her entrance in Season 12. When the Reds and Blues are cornered by the Space Pirates and all hope seems lost, she reveals that she's one of the guys in the firing squad and quickly saves them.
- Big Good: Of Season 10, where she leads the Blood Gulch Crew to kill the Director. Though her Jerkass attitude and the others distrusting her makes her somewhat of a villain at the same time. A straighter example is in Season 12, where she realizes the truth of the Civil War on Chorus, and gets the Reds and the Blues to help her stop Locus and Felix.
- Big, Screwed-Up Family: Her mother wasn't around much and died while Carolina was little, she ends up in a bitter rivalry with the A.I. version of her mother, her father acts cold towards her and barely acknowledges her as his daughter, and the closest thing she has to siblings are a group of tortured A.I.s. Really, it says a lot when Epsilon is the closest thing she has to a stable family member.
- Break the Haughty: For all her willingness to use the Blood Gulch Crew as Cannon Fodder during the raid on the Director's base, for all the terseness she's shown towards Washington, for all her assertion that she and Church don't need anyone else... when the time comes to fight the Tex Drones, she ultimately pushes herself too hard, with memories of her previous failures coming back to haunt her. By the time she's beaten, she's finally forced to admit that Tex really is better than her. Listening to her voice, you can tell that it's a bitter pill to swallow.
- Brought Down to Badass: She loses the advantage of most (if not all) of her superhuman armor enhancements after Epsilon's Heroic Sacrifice at the end of Season 13. She also becomes a glorified invalid during Season 15 after she tries to recover from being tortured in armor-lock by Temple, though she still manages some moments of badassery and takes up the role of the Reds and Blues' strategist during their assault on the Blues and Reds' volcano base on Earth.
- Broken Ace: After the introduction of Tex to Project Freelancer. She gets better gradually over the course of the present day segments in Season 10.
- Broken Bird: Carolina speaks to Church of her former team and how they tore each other to pieces. It's made pretty clear that she's a very broken person under all the armor and ferocity.
- The Bus Came Back: She appears briefly in The Stinger for Season 11. Returns in person during Season 12, even pulling off a Big Damn Heroes moment
- But for Me, It Was Tuesday: As revealed in Season 15, Carolina and Tex once had a Capture the Flag operation in Desert Gulch, which led to the death of a simulation trooper named Biff. Carolina didnt remember the encounter and continued her life as normal. For the other sim troopers stationed there, though, this moment ultimately led to them seeking vengeance against all of Project Freelancer and the UNSC.
- Can't Catch Up: Carolina was little more than a below average soldier when compared to Tex, something that she tried to prove wasn't true throughout the entire Freelancer saga. Needless to say, she completely failed.
- Chameleon Camouflage: Her armor ability, where she can instantly change her armor's color to anything she needs.
- Character Development: She started out as The Ace of the Freelancer team, but by Season 10, she's become a bitter and easily-angered soldier obsessed with revenge. And then we see elements of a Broken Bird beneath it all... and then she opens up a little to Church as well as swapping positions with Church by telling him to let go of his past and even letting go of her desire for revenge and taking pity on the Director via leaving him a pistol to commit suicide with at his request. She also starts to grow more of an attachment and affection towards the Reds and Blues over time, to the point where she outright states that she considers them to be her family during Season 13.
- Furthermore, Season 15 has her wanting to move past her blood-soaked history as a Super Soldier and encourage more peaceful solutions to the conflicts she's thrown into, and she also shows herself to be just as crazy as the rest of the Blood Gulch Crew during their respite on Iris. And on a more subtle note, the assault on the Blues and Reds' volcano base on Earth during Season 15 also shows that she's significantly improved her skills as a strategist and tactician, especially when she was a shining example of The Peter Principle during The Project Freelancer Saga.
- Character Focus: She is the ultimate protagonist of The Project Freelancer Saga.
- Charles Atlas Superpower: She tosses a gravity hammer with one hand, which hits an Elite Mook from across a huge room in the face.
- Close-Range Combatant: When she is seen fighting, she generally tries to close the distance with her opponent to take them out with martial arts. In Season 11, Wash even calls her an expert in martial arts.
- The Comically Serious: Like the previous two Freelancers in the main cast - in fact, she's actually a mix of both, combining Tex's Action Girl with Wash's serious agent shtick - she's a very effective Straight Woman, especially when she tries to loosen up during Seasons 13 and 15.
- Cool Big Sis:
- Shows noticeable shades of this to Wash. She keeps him focused during missions and acts out violently to protect him when an Insurrectionist warthog has pinned him down.
- By the end of Season 10, she is literally this to Epsilon, being that they are both technically offspring of the Director and they have warmed up to each other immensely.
- Create Your Own Villain: Back in the Project Freelancer days, Carolina and Tex inadvertently killed a sim trooper named Biff. His death led to Temple, another sim trooper, seeking revenge against her and the rest of the Project. Years later, Temple manages to trap her and comes the closest to killing her since the Meta.
- Dance Battler: Her fighting style could best be described as "Like Texas but with more speed and finesse and less brute force".
- Dark Action Girl: When she shows back up in the present timeline as well as her actions in Episode 19 of Season 10.
- Defrosting Ice Queen: She's nicer around York compared to the rest of the Freelancer team. And then, after Church replays some of York's memories about her (via a recording Delta had made) and admits he understands what she's going through, she begins to open up to him, calling him "Church" instead of "Epsilon." She even laughs at his awkwardness in carrying her!
- It continues into the later seasons, with her even openly stating that she sees the Blood Gulch Crew as her family in Season 13 and tries to interact with them more in Season 15 (with her even joining Tucker, Caboose, and Grif's band... much to their horror). Come Singularity, and her current personality is almost completely unrecognizable from how she was during The Project Freelancer Saga.
- The Determinator: The sheer force she puts into trying to beat Tex to the briefcase in Episode 17 of Season 9 is astonishing and impressive. This makes it all the more tragic when she still fails at the very last second.
- She and Wash are both the protagonists of Season 12 of The Chorus Trilogy, though they then are upgraded to serving as the proper deuteragonists of Season 13.
- Carolina is also the tritagonist of Singularity, with a large portion of the plot dedicated to her definitively moving past her time in Project Freelancer along with coming to terms with Wash's brain damage.
- Disney Villain Death: A subversion, courtesy of the Meta; she was his first "kill". This is also why Tex thought she was dead and told Church as much. If you watch the scene of her falling off the cliff in slow motion, you'll notice that her grappling hook gun is just starting to come into frame as the shot ends, explaining how she survived.
- Doomed by Canon: Tex tells Church that, by the time she met up with York in Out of Mind, Carolina was dead. Delta explains that Carolina received two A.I.s, and only functioned for a short period of time afterwards. Subverted, though, in that she's ultimately revealed to be alive.
- Dreadful Musician: She's apparently a bad singer, though no one dares to tell her. She's actually well-aware of this, and only wanted to sing because it was fun to watch the Reds and Blues squirm.
- Drop the Hammer: She uses a Gravity Hammer to take out an Elite Mook in Season 9. She returns in Season 10 with one as part of her regular arsenal.
- Easily Forgiven: The Blood Gulch Crew forgives her pretty easily for everything that she put them through. This is all actually lampshaded by Wash, who questions why they're going after her and Epsilon after everything they did, to which Simmons replies that they gave Wash a second chance... and Wash had shot Donut before. Though like Wash, later seasons would show that even though the others might have forgiven her, she still doesn't entirely forgive herself.
- Family Eye Resemblance: Green Eyes, just like the Director has.
- Fangirl: In a PSA advertising the 2018 RTX convention, Carolina is awestruck when Sarge tells the viewers that among those attending the event is Troy Baker. Or more specifically, the man's chops as Revolver Ocelot.
- Fatal Flaw: Pride. She is 57% more likely to neglect her teammates in a competitive scenario. Carolina just cannot bring herself to accept that Tex is the better soldier until Episode 21 of Season 10. It costs her in Season 13 when she takes on Sharkface and loses the first time around.
- Fiery Redhead: Red haired and very short tempered.
- Foil: Weirdly enough, she turns out to be one (at least during the events of The Project Freelancer Saga) for Simmons, of all people, from during his time in Blood Gulch. Both of them suffer from looking up to a terrible father figure (The Director and Sarge, respectively) who they feel the need to please regardless of futility, build their own identity around being the best or most obedient child/pupil for their father figure (which they inevitably fail at), suffer from a loss of personal identity because of that aforementioned inevitable failure to please them, and then lash out and hurt those that they really care about. Really, the only differences between the two characters (aside from their genders) is that the overall stakes for Simmons during The Blood Gulch Chronicles are incredibly low compared to Carolina's during The Project Freelancer Saga, and Simmons eventually re-focused himself on being just The Smart Guy for Red Team while Carolina strove herself to be The Ace for the Freelancers as a whole until it nearly killed her.
- Freudian Excuse: The reason for her ridiculously huge ego, temper, and utter inability to empathize with or respect others is how much the Director pushed her, meaning that she had to constantly compete with others just for her father to give her the time of day.
- Going Native: During her R&R time with the Reds and Blues on Iris, she ended up getting her fair share of quirks. To give an example, she tried to become The Apprentice of Grif in terms of being "the best at being lazy."
- Good Is Not Nice: At the start of Season 10. Though she's a bit shorter with her teammates, she still cares for them and is incredibly bothered by Tex killing Connie.
- Grappling-Hook Pistol: She has one of these, which she uses for such purposes as redirecting a machine gun turret, Building Swing, saving Wash, saving herself from a deadly fall, and in an Improvised Weapon. Notably, this is one of only two weapons in the series thus far that is not also a canonical weapon in the Halo franchise (the second is Pillman's throwing axes). Sadly, Felix eventually destroys it with a grenade in "Great Destroyers."
- Green-Eyed Monster: She does not take Tex beating her well. The trope name itself even comes up in Episode 13 of Season 10, "Greenish-Blue With Envy", in which said envy is manipulated by Sigma and Gamma to cause the events that ultimately lead to Washington's breakdown and the fall of Project Freelancer.
- Guns Akimbo: She adopts a twin set of Plasma Rifles in Season 10.
- The Gunslinger: In Season 9, the only weapon she is seen using is a pistol, whether a typical M6 Series or her own Grappling-Hook Pistol.
- Heart Is an Awesome Power: Her armor's special ability is Camouflage, which changes the color of her armor. On the surface, it's about as mundane as they come. However, she uses it to deadly effect several times in Season 9, using it to get a drop on her foes right in front of her, whether by blending into the background or by Dressing as the Enemy. It's particularly impressive since she uses it more effectively than others use a full-on invisibility ability, due to the conspicuous nature of her usual bright aqua armor.
- Hero of Another Story: Aside from the other exploits she engaged in while serving as a Freelancer Agent, Carolina also re-enlisted in the UNSC as a common foot soldier under a fake name and fought in the Great War against the Covenant while she was Faking the Dead when the Meta threw her off a cliff.
- Hidden Depths: Despite being typically shown to be blind to pop culture (at least among the rest of the Reds and Blues), she snarkily calls Tex (who was using a voice filter at the time) "Optimus" during their fight in Season 15. She's also a terrible singer...and is perfectly aware of that.
- Hidden in Plain Sight: Singularity reveals that during the time period between her getting thrown off a cliff on Sidewinder and rescuing Epsilon, she forged some documents, changed her armor, and re-enlisted in the UNSC as a foot soldier named "McCallister".
- Historical In-Joke: Her having two different A.I.s are likely an allusion to how she's named after two different American states - North Carolina and South Carolina.
- Hollywood Tone-Deaf: We finally get to her sing in the Season 15 credits, and it is exactly as bad as the others implied.
- I Hate Past Me: According to Singularity, her Labyrinth illusion is her past self from during the heyday of Project Freelancer.
- Improbable Weapon User: In her battle against the Tex Drones in Episode 21 of Season 10, she takes a fallen grenade, shoots it with her Grappling-Hook Pistol, and uses the ensuing combination as a makeshift ball-and-chain flail. That explodes.
- Indy Ploy: Although her plans never go as planned, and her squad often becomes rather disorganized in the middle of a caper, she usually still manages to carry the day (or at least get her team out alive) by being really good at improvisation, combined with her sheer personal skill on the battlefield.
- Jerkass: Throughout Season 10. In the past, she basically stops caring about anyone but herself after Tex shows up, going as far as to take both Wash and South's A.I.s in order to settle a rivalry that only exists in her head. She also refuses to listen to York when he tries to talk to her during his Heel Realization, simply brushing him aside in order to pursue her delusional competition with Tex. In the present, her attitude toward most of the Reds and Blues is understandable, given that at the time, they're all stupid, lazy, or both. However, she goes too far when she expects them to act as Cannon Fodder in a battle that has nothing to do with them, and threatens to shoot Tucker when he calls her out on it. Luckily, though, she gets better at the end of the season, and by her return in Season 12, she is significantly friendlier towards the Reds and Blues.
- Jerk with a Heart of Gold: After her defrosting process. She might still be sarcastic and clearly sees both herself and Wash as Surrounded by Idiots, but she still deeply cares about the other Reds and Blues and also learns to be less of a selfish person in general. Most notably, she, Epsilon, Wash, and Tucker are easily the most determined to stop the Chorus Civil War during Season 12 and bring Control to justice.
- Kick the Dog: One that comes back to haunt her; During her days training at the simulations and competing with Tex, she accidentally impaled Biff by throwing a wooden flagpole away during a fight. Rather than get him medical attention or help Temple, Carolina arrogantly dismisses the tragedy for its relative unimportance and continues her fight with Tex. This was Temple's Start of Darkness, and years later, he would become a Freelancer-hunting SerialKiller with a particular grudge against Carolina.
- Lack of Empathy: Before getting more acquainted with the Reds and Blues, she showed traces of this towards non-Freelancers, most notably in the Season 15 flashback where during her fight over a flag with Tex, the two of them accidentally impaled one of the Simulation Troopers there named Biff with it. Rather then helping Temple give medical help to Biff, she tells him that "This has nothing to do with you" and continues her fight with Tex.
- The Leader: Of the Freelancer Five-Man Band. She and Wash then share this role in the modern plot.
- Leitmotif: "Crazy Carolina." Morte ai nostri nemici...
- Lightning Bruiser: She darts like a hummingbird and hits like a ton of bricks on account of her Super Speed.
- Locked Out of the Loop: Singularity heavily implies that she never knew about Junior, as she's completely baffled when Donut claims Tucker is busy "giving birth to an alien" at the moment of her and the rest of the Blood Gulch Crew being "awakened" within the Everwhen.
- Luke, I Am Your Father: The Season 10 finale reveals she's the daughter of Allison and Director Church. She notes that her mother had terrible taste in men.
- Mad Scientist's Beautiful Daughter: She is the Director's daughter, and fairly attractive under her helmet to boot.
- The Man Behind the Man: In Season 11, to Locus, of all people. Subverted, as she and Epsilon are masquerading as the actual Control to stop Locus and Felix's mercenary corps.
- Mr. Vice Guy: By the end of Season 10. She finally lets go of the past and her grudge against Texas and decides to make up for her past mistakes.
- My God, What Have I Done?: Her first words upon being "awakened" within the Everwhen is to shakily ask if she and the rest of the Blood Gulch Crew "broke the universe."
- Nice Job Breaking It, Hero!: Taken Up to Eleven in The Shisno Paradox. The timeline itself is broken by her actions; specifically, saving Wash.
- Ninja: Specialist in close combat and stealth.
- Not So Above It All:
- Her tone of voice and choice of words when she tells Tucker and Sarge off for their dance and song taunting of the Space Pirates in Season 13, Episode 2 seems to suggest that despite being a professional, she actually finds it pretty amusing.Carolina: (sounding like she's trying not to laugh) Alright, that's enough. We just took their base, no need for cruel and unusual punishment.
- When the Reds and Blues decided to lay low after the events of Chorus, Carolina had a difficult time actually adjusting to retirement. She apparently figured out how to relax for once, as well as revealing that she has an extremely dry sense of humor. She finds Grif and Simmons discussing Game of Thrones to be a very interesting event... but not nearly as interesting as that time Wash grew a beard. She also decided to join the band that Tucker, Caboose and Grif put together as their singer, and apparently did it just because it was fun to watch them squirm at her terrible singing voice.
- Her tone of voice and choice of words when she tells Tucker and Sarge off for their dance and song taunting of the Space Pirates in Season 13, Episode 2 seems to suggest that despite being a professional, she actually finds it pretty amusing.
- Not So Different: Aside from the obvious parallels between her and Tex, Epsilon-Church points out to her in Season 10 that the two of them have greatly struggled with moving from their pasts and long-dead loved ones (York for Carolina and Tex for Church). He even shows her York's surviving data logs since he wanted to show her that he "knows what it's like to spend your life chasing ghosts."
- Oedipus Complex: The finale of Season 10 reveals she has an Electra Complex, whether she knows it or not. Her competition with Tex for the Director's approval turns out to be her competing with her mother's memory for her father's approval.
- Only Known by Their Nickname: Unlike Tex (Allison) and Wash (David), we don't know what her real name is. The only thing known about it is that her surname is Church.
- Only Sane Man: It's pretty plain throughout Season 10 that she goes through exactly the same stages Washington went through: despair at the Blood Gulch Crew's ineptness, surprise when they pull something good out of the hat (although the video log of Agent York probably helped a bit here) and then finally accepting them as being Weak, but Skilled and lightening up. See Defrosting Ice Queen.
- Pay Evil unto Evil: After getting a little push from Sigma and Gamma. This extends into the present day, where her efforts to find and kill the Director make her a Token Evil Teammate to her companions during Season 10.
- Pet the Dog: Giving her A.I. to Maine, so that he could communicate after his throat injury, was one of Carolina's few selfless act during her time as a Freelancer. But since said A.I. was Sigma...
- The Peter Principle: Carolina is an exceptional fighter, second only to the explicitly superhuman Tex. However, this apparently does not translate into leadership skill, as shown by her command of the other Freelancers in the field throughout Season 9 and 10, especially whenever Tex is involved. In Episode 10 of Season 10, her attempt to send Wyoming, the squad's sniper, into close combat against sustained minigun fire is the sort of tactical brilliance that would be worthy of Sarge. Present day Carolina doesn't even give combat orders on screen to the Reds and Blues, but her manner with them suggests she hasn't gotten that much better. However, she's significantly improved her own skills as a strategist come Season 15, with her being the one to direct the Blood Gulch Crew's assault on the Blues and Reds' volcano base on Earth.
- Phlebotinum Overdose:
- Carolina believed that having two A.I.s in her head would make her twice as efficient as any of the agents with only one. The truth was that it just added even more voices inside her head, though this wasn't actually a problem until the Director accidentally caused her to suffer a temporary mental breakdown.
- As of Season 13, Church is getting more concerned over Carolina's increasing reliance on both him and the Freelancer armor enhancements they've collected over the years.Carolina: Look, I'm sorry if I pushed you too far. But we can't use that as an excuse. We're going to need every advantage we can get.Church: Ohh, you're right! Would you like some holographic projections too? How about a time distortion while you fight? Ooh, or we could get you a seat warmer! How about that?Carolina: You know what we're up against!Carolina: ...What did you say?Church: He kept fighting for more and more power too, and in the end it got him killed.
- Precision F-Strike: In contrast to Wash, Carolina rarely uses the F-bomb - once in Seasons 10 ("Oh, fuck! No you don't!"), 15 ("Don't fucking care! Tweedledee and Tweedledum, lay down suppressing fire!"), 16 ("Stop being so fucking nice! You're sitting this one out, Wash!"), and 17 ("I don't give a hot fuck if this messes with the timeline."). The RTX 2018 PSA has her twice using "fricking". But Carolina still averts Gosh Darn It to Heck!, given "damn" and "hell" are her favorite swears.
- Put on a Bus: During Season 11, where she only appears in The Stinger. Once she returns in Season 12, it's revealed Carolina and Church set off on their own after hearing rumors of soldiers with advanced military hardware.
- Quest for Identity: Singularity reveals that she's been internally struggling with what she identifies herself as after her Character Development, which is perhaps best shown with her confronting her past self from during the Freelancer era.
- "The Reason You Suck" Speech: Gives a vicious one to herself from during the time of Project Freelancer in the Labyrinth, with her directly telling herself that her struggle to earn her father's love is doomed to fail and she should learn to be more expressive in how much she cares about her teammates. Unfortunately, it turns out to be an Ignored Epiphany and her past self then launches into a brutal tirade of her own, accusing her present self of removing her own passion and forgetting how to manipulate others to her own purposes.
- Replacement Goldfish: As of Season 10, she's replaced Tex as the badass action chick, a comparison she is not fond of. She and Church have even developed a certain rapport with each other regarding her (though unlike the Slap-Slap-Kiss relationship between Church and Tex, Carolina and Church's relationship is more along the lines of being Like Brother and Sister).
- Reports of My Death Were Greatly Exaggerated: Church and Washington are just as surprised as the audience is to learn that she's alive.
- Roaring Rampage of Revenge: She's stuck in this mindset during Season 10 until she decides in Episode 22 to leave the Director to kill himself rather than murder him.
- Self-Made Orphan: Sort of, by giving her father (the Director) a pistol to commit suicide with.
- She Cleans Up Nicely: In the scenes after Episode 22 for Season 10, she goes to Club Errera in a blue skirt, with a white tube top above it, black, heeled boots, and her (longer) hair tied back with a white band in a ponytail. This is the only time thus far that she has been seen in anything except her armor.
- Ship Tease:
- She was very close to York during their days at Project Freelancer. She becomes very saddened by his death and still holds onto his lighter as a Tragic Keepsake.
- As of Season 17, she has grown much closer with Washington as he helps her look to the future instead of living in the past. The two hold hands while standing by a beach in Season 15, and they even confess their love for each other during Season 17. She even breaks down crying for a moment once Wash makes it clear to her that he's made his peace with his brain damage.
- Significant Green-Eyed Redhead: She's one of the major characters in The Project Freelancer Saga of Season 9 and 10, and the only people in the Halo universe who have blue and/or red hair are dyed hair colors.
- Skewed Priorities: Played for Laughs in "Previously On." According to Carolina, Wash growing a beard and Grif managing to convince Simmons that Game of Thrones really happened were the most noteworthy events to happens since the Reds and Blues retired on Iris, ignoring stuff like Caboose getting stuck in the Upside-Down, an epic battle between robots and dinosaurs, and Donut burning down a water park that they all built.
- The Strategist: Plays this role in the final push against the Blues and Reds. Being too weakened to fight effectively, she instead comes up with clever strategies and gives orders from the sidelines, occasionally peeking out of her cover to shoot an enemy.
- Strong Family Resemblance: According to Word of God, her facial model was Lindsay Hicks, who played her mother, Allison, in live action.
- Super Speed: Using what is implied to be due to an armor enhancement at the time, she manages to briefly keep up with mooks in jetpacks on foot, as well as a Mongoose. She also uses her Speed Unit again in "Theogeny" to kick the Labyrinth's version of her past self through a concrete wall.
- Team Mom: She's become this for the Blood Gulch Crew by Singularity, much in the same way that Wash has become the Team Dad. It's perhaps best summed up in this below exchange between the two in "Previously On" when Sarge declares war on gravity itself.Carolina: (wearily) Are we really going to let this play out?
Wash: (amused) Why not see where it goes?
- Token Evil Teammate: In the present day parts of Season 10, the Reds and Blues regard her as one of these, referring to her as "our mutual friend/enemy/companion, or friendenemapanion" and "a trigger-happy psychopath". In a way, she takes the same role Tex had in The Blood Gulch Chronicles, with the important difference that her barely concealed desire to murder them all is much more brazen and played completely seriously. Thankfully, she evolves past this as the series goes on.
- Too Fast to Stop: Of a sort. She does have control over her direction and body when at this speed, but tends to be distracted or otherwise defeated, ending with her crashing into something and falling on the ground.
- Took a Level in Jerkass: In Season 10. The flashback segments show that she's much shorter with her teammates on missions. The present shows that she's two steps from Ax-Crazy.
- Took a Level in Kindness: After Church replays some memories Delta had of York and admits that he knows what it's like to be chasing something that means a lot to you, Carolina becomes noticeably warmer towards him, even going so far as laughing. That's something she never did during any of the Freelancer flashbacks. By Episode 21 of Season 10, this kindness extends to the other Reds and Blues. It continues into the later seasons, to the point where her former personality is almost unrecognizable come Singularity.
- Tragic Hero: Her pride and desire to be the best lead to immense suffering for both herself and those closest to her. In a rare case for this trope, she comes to terms with these flaws early enough to not lose her life over it, though it's still a hard road for her to get there.
- Unknown Rival: She becomes obsessed with proving herself better than Tex and reclaiming her status as Number One on the Freelancer leaderboard, practically destroying her mind and body in order to do so. Tex, meanwhile, only seems to pity her, which only drives Carolina even more insane.
- Unwitting Instigator of Doom: As Season 10 reveals in both Episodes 6 and 13, her decision to give Sigma to Maine, as well as her decision to take on both Eta and Iota as an attempt to show up Tex and Omega led to the breaking of Maine, Washington, and herself. Her grudge with Tex is also directly responsible for Mark Temple's crusade.
- Walking Spoiler: For the present day segments of Seasons 9 and 10, anyway, as well as Seasons 11 and 12.
- "Well Done, Daughter!" Girl: The Reveal that she is the Directors daughter in the finale of Season 10 paints her determination to stay on top of the leaderboard in a whole new light. It wasn't about being the best, but just getting some sign of approval from a cold and distant father who is obsessed with the past. Even in private, she only ever refers to him as "Director" or "Sir" and is referred to as "Agent Carolina" in return.
- Weapon of Choice: She really likes to use a Grappling-Hook Pistol in the fully animated sequences during both The Project Freelancer Saga and The Chorus Trilogy, though Felix eventually destroys it in "Great Destroyers" with a grenade. She also liked to use a Gravity Hammer and two Plasma Rifles during the flashback sequences of The Project Freelancer Saga. In the present day, she uses a standard Battle Rifle like the rest of the main cast.
- What You Are in the Dark: In the time between her faked death and her reappearance in Season 9's finale, she re-enlisted in the UNSC as a common foot soldier. While she claims it was just so she could keep her skills sharp and keep a tab on Freelancer's operations, it's all but stated that she also did it since she couldn't just stand by and watch the rest of humanity burn at the hands of the Covenant.
- The Worf Effect: In Season 12, she seems to have trouble fighting against Felix and another time against three space pirates. Then again, she suffered an unexpected serious leg wound against Felix, and some of the pirates are likely using improved Freelancer armor enhancements. It's later Deconstructed in Season 13; her multiple defeats in Season 12 both against Felix and at the radio jammer have left her doubtful of her own abilities, to the point she refuses to acknowledge the fact that she is both the best, and never needed armor enhancements. Church implies that she's a hair's breadth from becoming the next Meta.
- Workaholic: Played for Laughs in Season 15, where she has trouble simply relaxing and taking time off, to the point she has to go to Grif-sensei for instructions in the art of lazy.
- Worf Had the Flu: Epsilon-Theta indicates that she had not been sleeping well during the events of Season 12 due to nightmares of "the bad man" (Sigma), something that was part of Epsilon-Delta's evaluations of her during the space pirates encounter.
Medical Super-Private, First Class Frank "Doc" DuFresne
In Season 2, in response to increased injuries and deaths at Blood Gulch, purple-armored medic DuFresne is sent to the backwater outpost to aid both teams. Doc, who earns his nickname after Church declares DuFresne too hard to pronounce, hardly deserves his title. He attended (but did not pass) medical school at Jamaica State, doesn't know how his healing doodad works, got his unique rank by sending Command a letter every day for four years asking for it, and treats Caboose's foot injury by rubbing his neck with aloe vera. Doc's pacifism, political correctness, and incompetence quickly make him unwelcome in either base, leaving him to wander the gulch, forgotten... until Caboose's "exorcism" leaves the AI O'Malley without a host. The Omega is able to possess him completely, leaving Doc a passenger within his own skull, only able to talk or shout apologies for O'Malley's actions. O'Malley eventually comes to regret choosing Doc as a host, as the two end up having Gollum/Sméagol style arguments over whether or not to kill people, if their nefarious secret lair needs an answering machine, etc. When Doc is called back to Blood Gulch to deal with Tucker's "illness," O'Malley jumps ship, freeing Doc once and for all.
His whereabouts during Reconstruction are unknown, though when Washington asks the Reds if they know a medic, they violently answer in the negative. In the extended version, they do call him, but forget (or didn't care enough) to tell him they didn't need him anymore. He arrives to find no one there, and says to no one in particular: "You guys suck."
In Revelation, he is called to Valhalla by Simmons, who was coerced into calling him by Wash and the Meta. He becomes a hostage of Washington, but due to the Stockholm Syndrome, they develop a bit of a rapport. He denies this strongly, however. Doc stays behind at the farm in Valhalla with Donut.
When notified that the Reds and Blues are stuck on Chorus, Doc flies there with Donut and Lopez. He begins assisting the Red team before he is hit by one of Grif's teleportation cubes, and doesn't reappear when the cube is thrown again. Excluding Lopez, nobody seems to notice his disappearance. He is later found hiding out in one of the caves on Chorus after getting sent to an alternate dimension.
- Actual Pacifist: Calls himself one, and is one, even while possessed by Omega, but he does manage to shoot The Meta at point-blank range with his overcharged medical scanner. Soon begins to drop this all together with creation of his new split personality O'Malley.
- Ambiguous Situation: It's unknown if Deke actually existed, since it's possible that the whole sob story was something concocted by O'Malley so as to get hold of Grif's time gun.
- Anti-Villain: You can't deny the fact he has every right to be angry at the Reds and Blues. O'Malley messing with his head probably doesn't help.
- Apologetic Attacker: Technically, it's Omega that controls his body, but Doc still loudly apologizes for what Omega does in his body on a regular basis.
- Appropriated Appellation: He seems to have long since given up trying to get anyone to actually call him by his name. He even signs a letter he writes in Season 10 as "Doc".
- Becoming the Mask: Sort of. When he first came along, he barely qualified as a war medic and he didn't seem to know what he was doing. Later on, by the time season 15 happens, he's proved himself not only a skilled soldier(especially with a rocket launcher) but he also managed to actually heal several people(Like Felix and Carolina, for exemple) flawlessly, thus proving himself worthy of being called a medic.
- Berserk Button: Freelancers. When Felix mistakenly calls himself a Freelancer, Doc pulls a weapon on him like everybody else despite being a pacifist and despite having just healed him barely a few minutes before.
- The Brute: His O'Malley Split Personality serves as this for Chrovos during The Shisno Paradox.
- Butt-Monkey: Nobody likes him, everybody insults him. He is completely forgot about after being teleported towards the end of Season 11 and is not happy when he finds it out upon his return. Deconstructed when this causes him to temporarily side against the Reds and Blues on multiple occasions.
- Colour-Coded for Your Convenience: Note that in a canyon overtaken by a war between a red army and a blue army, Doc's armour is purple.
- Cosmic Plaything: While the show has no shortage of Butt Monkeys, Doc is the only one whose ordeals are Played for Drama. The poor man is driven insane and develops an entire split personality from the trauma he endures over the course of the show.
- Dark and Troubled Past: He had a little brother named Deke, who fell into a river when Doc looked a way for just a second. Doc managed to pull his brother out of the water, but his brother wasn't breathing, and Doc didn't know CPR. Doc could only stand helpless as eventually, Deke's pulse ceased.
- Demonic Possession: More like A.I. Possession; Omega takes over Doc's body for the majority of his screen time in the first five seasons.
- Distressed Dude: He's been kidnapped by a jeep, held "prisoner" by the reds, taken over by an AI, captured by a couple of freelancers, and sent to an alternate dimension. Granted, the only times he's physically held captive are while in the wall, arguably the jeep and while with red team.
- Forgettable Character: No one besides Lopez even notices he's gone after he gets sent to another dimension.
- Freudian Excuse: The Shisno Paradox reveals he became a medic as a means to atone for being unable to save his little brother.
- The Friend Nobody Likes: He's not disliked per say, but most of the cast sees him as useless, not without good reason, and don't even care when he gets kidnapped or disappears.
- Granola Girl: Loves some alternate lifestyles, and by Season 16 is vegetarian with a passion (culminating in a pizza that makes Grif want to shoot him).
- Healing Shiv: The gun-like object he (as well as other medic-type characters) keeps with him is supposedly a medical scanner that can diagnose injuries and sicknesses. Subverted in Season 15, where he admits that its just a Plasma Pistol.
- The Heart: Well, really more of an over-the-top parody of one, compared to Donut's more sincere version. But he does give a speech that convinces the Reds and Blues to go and help Carolina and Church.
- HeelFace Revolving Door: After Season 13, a combination of The Dog Bites Back and OMalleys return leads to him constantly changing sides, going from the BGC, to the Blues and Reds, back to the BGC, then to Chrovos thanks to OMalley, then back to the BGC.
- Hyde Plays Jekyll: By The Shisno Paradox, O'Malley has learned how to impersonate Doc.
- Large Ham: After developing his O'Malley personality, he's every bit the ham Omega was during the Blood Gulch Chronicles.
- Made of Iron: To Nigh-Invulnerability. See season 8 and season 9 episode two on how normal soldiers react by being beat up by Freelancers, especially the Dakota twins. He instead is punched so hard into a reinforced wall that he's permanently immersed in 5 tons of it, to the point that not even Super Strength or the warthog crane can liberate him. And doesn't even get a headache, for crying out loud. He's also caught in an explosion that leaves Washington visibly injured and shaken while he is totally fine with no injuries whatsoever. And somehow Donut blasting him off the top of a skyscraper didn't kill Doc either.
- The Medic: What his purpose is supposed to be. Unfortunately, he says (as shown in his quote above) that said definition applies better to doctors than medics, who basically specialize in bedside manner. That said, he does help with some medical procedures against all common sense.
- Mistreatment-Induced Betrayal: Part of the reason he joins the Blues and Reds is because the Blood Gulch Crew has always treated him terribly. He only turns back when he realizes that the Blues and Reds are even worse.
- My God, What Have I Done?: He feels guilty for trusting the Blues and Reds, saying that hes partially responsible for all the death, injury, and misery that happened as a result of their actions.
- My Greatest Failure: The Shisno Paradox reveals the reason he became a medic was to atone for failing to save his brother from drowning.
- Nice Guy: Doc is probably one of the nicest, most personable people in a universe 'full of assholes', which results in the abuse he takes.
- Only Known by Their Nickname: Starting in his second episode, he's only really identified as "Doc" because his name is hard for the others to pronounce. He initially doesn't think it will stick, but is proven very wrong.
- Only Sane Man: Was this originally, until his character got Flanderized into being as competent as the other characters. Which is to say, a total and complete failure.
- Put on a Bus: Goes back and forth between this and The Bus Came Back.
- Disappears from the plot after Season 5, presumably having gone back to work for the UNSC.
- He returns in Season 8, having been called in accidentally by Simmons, who was forced to hire a medic by Washington.
- He reappears briefly in Season 10, having elected to stay behind in Valhalla rather than rejoin the Reds and Blues. Although he elects to go with the others to save Epsilon and Carolina, he takes too long, and is left behind in Valhalla with several stranded UNSC pilots.
- In Season 11, he is picked up alongside Lopez's head by Donut on his way to Chorus. However, he disappears once more near the end of the season after getting teleported away by one of the Future Cubes and not coming back when the cube was thrown again.
- He returns once more in Season 13, having hid in a cave after visiting an alternate dimension. And thanks to Sanity Slippage, he's brought back O'Malley with him.
- Sanity Slippage: In Season 13. Being trapped in an alternate dimension and getting out only to realize that your friends didn't notice that you were missing can do that.
- Split Personality: He appears to have one to others thanks to his possession by O'Malley in The Blood Gulch Chronicles. He gains one for real in Season 13 due to his Sanity Slippage. The two eventually merge in Season 17.
- Stockholm Syndrome:
- He's clearly underwent this with O'Malley, but it's clearly one-sided and after they part ways, neither of them are particularly affected by it.
- During his time as a prisoner of Wash and the Meta, he mentions he doesn't have it as an insult. Later events suggest otherwise, at least toward the former.
- Strong as They Need to Be: His ability as a medic fluctuates depending on whether he's needed for a plot event or a joke - if it's for the plot, he'll pull through, but if it's a joke the patient will most likely wish Doc had never gotten involved.
- Took a Level in Badass: Crawls his way up the meter after his separation from O'Malley. Then Season 13 happens and he's at least on the level of the average simulation trooper.
- As an agent of Chrovos, he was able to almost beat Donut in a straight fight to the death.
- Took a Level in Jerkass:
- It's subtle, but when O'Malley leaves his head, he doesn't hesitate to swear, when before, the closest he got was "H-E-Double hockey sticks". Also, he's kind of nonchalant when's he's reintroduced in Season 11. And his reappearance in Season 13 goes to show just how far he lost it by having him beat up Tucker.
- He takes another, less subtle one in Season 15. He acts rather rude to the Reds and Blues when they meet each other again, and pulls a Mistreatment-Induced Betrayal by joining the Blues and Reds. He gets indignant when Tucker tries to remind him of everything they've been through together, when Doc once did the same thing for a Rousing Speech. It's implied that he's acting this way because O'Malley is still subconsciously influencing him.
- Worst Aid: He's very bad at medical advice, but somehow manages to keep both the Reds and the Blues alive. That said, he seems to be at least moderately okay about this by Season 10, when he actually manages to save someone's life with his medical training.Doc: I haven't had a killing spree since my last residency!
Andrew "Andy" D. Kaboom
Andy is a bomb (the same bomb used in Halo multiplayer) built by Tex from parts from a protocol unit and "some other personal items" (according to him) to blow up and kill O'Malley. Due to O'Malley's base locking down after his placement inside, he's about to blow up most of the Blood Gulch crew, but Church asks Gary/Gamma to deactivate it, saving their lives. It's then revealed that the bomb can talk and is named Andy. Andy has a short fuse (literally and figuratively), likes to insult people, and finds humor in the misfortunes of others. He also likes to blow stuff up, though when Tex threatens to detonate him, he reacts with fear (though it may be because he wouldn't do much damage if detonated at that particular time.)
Originally Andy is very heavy and only Caboose can carry him. However in later episodes, when O'Malley refers to him as a bowling ball, Andy asks Caboose if he is fat, and then states that he has been working out. Sarge confirms this since he (and several others) can carry Andy with ease.
Andy gains a new role when it is revealed that he is the only one who can understand the alien language. Later, Sarge kidnaps Andy and has him translate the orders from Vic stored in Lopez (which could only be played back in Spanish). Andy is seen with Tex onboard the Pelican as she leaves at the end of The Blood Gulch Chronicles, exploding and killing O'Malley and Tex, and producing only a white flash.
Although he exploded, he later appears in the sponsors-only ending of a Season 6 episode expressing his disappointment about how small his explosion was. An Epsilon-version of him appears near the end of Season 9 as a bomb built by Tex and "retrieved" by Grif as a part of Sarge's "Fighting the Planet" plan. In Season 11, Tucker accidentally calls him via the Blue Base's built-in Siri, and we hear his voicemail message.
- Action Bomb: He prefers the term "Explosive American".
- All There in the Script: His full name is only shown in his Season 4 character bio.
- Instant A.I.: Just Add Water!: He was supposed to be just a bomb. Somehow, an A.I. came out of it.
- Jerkass: He's probably the biggest one who isn't an outright villain in the series. He's also not afraid of Tex and is therefore the only character who constantly and mercilessly taunts her, jumping on her Berserk Buttons in a way nobody else would even dare thinking about. After all, what's she going to do to a guy who's sole reason to exist is to blow up?Andy: In other words, you want me to blow stuff up, you're gonna have to blow me first!
- The Loins Sleep Tonight: When the time comes for him to actually detonate in Season 9, he finds he has some trouble "performing". It's played just like this trope, complete with "I swear this never happens to me".
- Pet the Dog: Does seem to have some affection towards Caboose.
- Saying Sound Effects Out Loud: Tick! Tick! Tick!
- Shout-Out: He's more or less one of the Talking Bombs from Starship Troopers.
- Sir Swears-a-Lot: Takes it to a different level since most of his swears are insults instead of being casual.
- Stuff Blowing Up: Or he'd like to, anyway.
- Translator Buddy: For the Alien.
- Your Mom: Uses variants of such as a way of insulting the other characters, mostly Tucker.Andy: Anybody care what I want? How 'bout Tucker's mother? Polishing me, twenty four-Tucker: Fuck this, I'm out.Andy: Out- just like I got outta your sister!
Lopez Dos.0 / Lopez Dos Point Oh
In Season 11, Sarge builds a new robot that coincidentally also speaks Spanish, whom Sarge dubs Lopez Dos.0. However Lopez Dos.0 is much nicer and more naive than the original Lopez, leaving the Reds to think he is stupider. He eventually crosses his Despair Event Horizon when he realizes that all of his commanders are utterly insane, and, stealing the body of the Reds' broken Mantis droid, C.C., begins a rampage to kill anyone in his path. He meets his end in the second-to-last episode of Season 11, thanks to Donut.
- Butt-Monkey: The Reds think Lopez Dos.0 is stupider than the original Lopez, and make it no secret that they don't like him very much. This is despite the fact that none of them can understand what he's saying.
- Character Death: He is killed by Donut in Episode 18 of Season 11.
- Despair Event Horizon: Dos.0 crosses it in Episode 17 of Season 11, losing his Nice Guy status and falling into Break the Cutie. His result is to commandeer the Reds' Mantis, and go on a rampage.
- FaceHeel Turn: In Season 11, he turns on his creators and attacks them using C.C.'s body.
- Go Mad from the Revelation: In Episode 17, he goes completely insane from the fact that he's following crazy people himself.
- Killer Robot: Becomes this by hijacking CC's body and trying to kill his creators in the latter parts of Season 11.
- Legacy Character: To the original Lopez. Sarge explicitly calls him Lopez's replacement. It becomes extremely awkward when he meets the original.
- Nice Guy: As a result of his naivety, he is much nicer than the original Lopez. This gets deconstructed later in the season.
- Roaring Rampage of Revenge: Initiates one against the Reds and Blues after stealing C.C.'s body. It doesn't work out for him.
- Surrounded by Idiots: Like his predecessor, his view of the rest of the cast is particularly low. Unlike his predecessor, however, he does not handle this well.
- Wide-Eyed Idealist: Begins as this. The original Lopez shows him how wrong this is.
- Project Freelancer: Captain Butch Flowers/Agent Florida, Agent York, F.I.L.S.S., Vic
- Artificial Intelligences: Delta
- Charon Industries: Locus
- Chorus: Vanessa Kimball, John-Elizabeth Andersmith, Katie Jensen, Antoine Bitters, Charles Palomo, Donald Doyle, Dr. Emily Grey
- Cosmic Powers: Huggins
- Others: The Alien, Junior, Dylan Andrews, Jax Jonez