This character sheet includes the major characters in Warhammer 40,000: Space Marine and Warhammer 40,000: Space Marine II.
Notice: Being one of the series in the Warhammer 40,000 universe, some of the tropes related to their own races will also apply to them. Also, this sheet will contain some unmarked spoilers.
Imperium of Man
Space Marines
Captain Titus

Captain Titus is the commander of the Ultramarines' 2nd Company, and personally takes part in the defense of Forge World Graia. Relatively young for a Space Marine, he is a decorated veteran of several major campaigns, and his exploits have earned him a reputation as one of the mightiest Ultramarines in recent memory. The men under his command are dearer to him than his own life, and if one of them is killed, Titus will not stop until the enemy responsible has paid in blood.
Titus still mourns the recent loss of his mentor, Captain Trajan, who was killed by Eldar in a routine mission Gone Horribly Wrong. Titus held Trajan to be the ideal of Ultramarine nobility and honor. Now that he has inherited command of Trajan's company, Titus aspires to be the kind of leader that Trajan was.
Titus was always interested in the thinking behind his enemy's tactics ever since he first stepped on the battlefield. With every battle, he experienced firsthand how differently each alien species and daemon horde fought on the ground, and gradually, patterns emerged. To better understand the enemy and their motivations gives him insight into their strengths and weaknesses, and into how to exploit those weaknesses in battle. His ability to predict how a group of enemies would attack saved many lives over the years. Now that hes a Captain, Titus works to instill the same critical thinking in the men under his command.
- Badass Baritone: Mark Strong gives him a very manly voice.
- Beware the Nice Ones: While Titus is incredibly noble, especially considering the kind of world 40k is, he's still a Space Marine. This means he has the physical power and artillery to reduce your body into a fine mist.
- Bling of War: He's a Captain, it's practically a contractual obligation.
- The Captain: He is The Captain of the Ultramarines' Second Company.
- Canon Immigrant: While Space Marine was originally dubbed non-canon, as the captain of the 2nd company (which the markings on Titus's armor indicate that he is) in the tabletop at the time the video game was release was Cato Sicarius. Later books in the 40k universe mention him as one of Sicarius's predecessors, resolving the canon conflict and bringing him into the lore proper.
- Chainsaw Good: His basic melee weapon is the iconic Chainsword.
- Continuity Nod: It appears a Sternguard Veteran model may have been based on his appearance
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- Determinator: Especially his resistance to the Warp, which is a plot point in the game.
- Drop the Hammer: He can equip Thunder Hammers. They're quite devastating, but limit Titus to his Bolt Pistol/Plasma Pistol sidearm and Bolter.
- A Father to His Men: One of the best examples of this in all of the Warhammer 40,000 universe. He cares very much about those under him, and is shown to be devastated when Sidonus is killed.
- The Hero: Functions as this, and technically the Big Good of the campaign
- Humble Hero: Titus shows a lot more humility than the average Space Marine; he's very kind and considerate towards the Imperial Guardsmen he meets, often deflects praise away from himself, and at the end of the game, allows himself to show weakness in front of Lt. Mira, collapsing to his knees in exhaustion after everything he's been though.
- Ideal Hero: Titus is self-sacrificing, humble, heroic and protective of those under his command, whether they're fellow Adeptus Astartes or Imperial Guardsmen. He shows nothing but respect for the Imperial Guard for their unfaltering bravery against titanic odds, and is so pure of heart that he is resistant to the effects of the Warp. He literally answers the prayers of the Imperial Guard with his arrival.
- Incorruptible Pure Pureness: Titus, for reasons yet explained, proves to be completely immune to the corruptive touch of Chaos. While he can be HURT by Chaos, his soul remains completely pure and untouched by it, allowing him to fight directly against it in ways that no other Space Marine can. In an ideal world, this would make Titus be seen as a beacon of hope and possibly even blessed by the God-Emperor himself. This being the 41st Millennium, however, he is imprisoned by the Inquisition for suspected heresy. On a more philosophical note, Titus is also incorruptible in that he is fiercely loyal to the Imperium and its ideals, being true to the intentions of the Codex Astartes and not strictly the letter. This makes him one of the most compassionate and idealistic leaders in the entire Imperium.
- Ink-Suit Actor: He looks quite a bit like a more grizzled version of Mark Strong with a full head of hair.
- Military Maverick: Instead of rigidly adhering to the Codex Astartes, he views it more of a guideline on how to act, instead of it being utter law. This goes against the popular concept that the Ultramarines view the Codex Astartes as sacrosanct, and compared to most Ultramarines depicted, he's the one who deviates from it the most. He's also a Captain and doing this.
- Neck Lift: The game plays up how strong a Space Marine is by having him easily chokeslam Orks with a single hand.
- No-Holds-Barred Beatdown: delivers an epic one to half-demon Nemeroth, ending with him crushing Nemeroth´s head between his hands.
- Older Than They Look: In lore, the Service Studs on a Space Marine's skull represent their years of service to their chapter and depending on the material used it'll represent longer periods of service.
- One-Man Army: Space Marines are this by default, but Titus's feats range into the frankly ridiculous even by their standards: by the time the dust settles, he's killed thousands of Orks, gone toe-to-toe with their warboss and his retinue, massacred his way through legions of Bloodletters, killed dozens of Chaos Space Marines and squished the skull of a sinister Sorcerer Lord.
- Shoulders of Doom: He's a Space Marine, this comes naturally.
- Shut Up, Hannibal!: Before their battle, Nemeroth tries to convince him to turn to Chaos with promises of power, but Titus' loyalty to the Emperor and the Imperium isn't so easily swayed.
- Took a Level in Badass: While by no means weak, by the time of the second game he's managed to go through the Rubicon Primaris and has become a Primaris Marine.
- Unwitting Pawn: For Nemeroth and the Daemon controlling Drogan's corpse. He's the one who essentially opens the door for Chaos to invade Graia.
- Wrestler in All of Us: Pops off a number of throws and slams that wouldn't be out of place in the WWE.
Brother-Sergeant Sidonus

Sergeant Sidonus has been a Ultramarine for over 200 years, and serves as Captain Titus' second-in-command. He is also Titus' closest friend and confidant.
He's seemingly seen it all, with a "been there, done that, no problem" attitude and dry sense of humor that instantly serve to defuse tense situations. But when faced with the enemy, Sidonus is their worst nightmare a brutally efficient warrior who won't stop until every enemy lies dead at his feet.
Sidonus bears the marks of his extended service to the Imperium including a bionic arm to replace one lost in battle against the Tyranids. When an Eldar weapon destroyed his eye and part of his face, Sidonus decided to leave the scars in place as a reminder of his victory over this formidable enemy.
- Artificial Limbs: His left arm is augmetic, he got it after he lost his original arm fighting against the Tyranids.
- Continuity Nod: Seems like Games Workshop based a Sternguard Veteran model off him.
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- Cool Old Guy: He is the eldest among Titus' squadron and that doesn't stop him from being cool.
- Deadpan Snarker: His years of experience have naturally made him very snarky.
- Eye Scream: Lost his eye to some Eldar Weaponry but refuses to get a bionic eye for a replacement.
- Good Scars, Evil Scars: Has a pretty nasty burn scar covering the right side of his face.
- Impaled with Extreme Prejudice: Is subjected to this by Nemeroth.
- In the Back: As he moves ahead towards a landing pad and holding off chaos forces, Nemeroth teleports behind him and fatally impales him with his lightning claws.
- Just Eat Gilligan: At one point he discusses the possibility of simply destroying the power source so as to prevent Nemeroth from obtaining it, but Titus shoots down the idea because he believes that destroying the power source may cause dire consequences.
- Number Two: Naturally due to being the Sergeant to the trio. Titus even entrusts him to protect the Warp Device.
- Old Soldier: He looks like an old man in his 60s which is impressive given that Astartes age much slower than normal humans, meaning his real age is immeasurably higher.
Brother Leandros

Leandros is the most recent inductee to the Ultramarines command squad. He is a "by the book" Ultramarine, and often speaks with little tact, since to his mind, all actions must serve the Emperor. He looks up to Titus and Sidonus, especially Titus, whom he sees as the type of Ultramarine he aspires to become.
He will question the motives of anyone he suspects of not giving their all for the Imperium, and has lost perspective on what it's like to face the horrors of the universe from a normal human standpoint, and is patronizing to the surviving Imperial Guardsmen he encounters.
He sometimes goes overboard in pursuing what he thinks is a noble course of action, because he wants to prove himself and his abilities.
- By-the-Book Cop: Every thought and action of Leandros's is filtered through his rigid adherence to the Codex Astartes.
- Hypocrite: If you take a closer look at the Codex than what the game lets on, he becomes this. When he calls the Inquisition on Titus on suspicion of heresy, the Codex actually states that you're supposed to report any suspicion to the company chaplain or librarian, not an outside faction.
- Knight Templar: Leandros is zealously devoted to following the Codex's procedures by the letter at all times. This results in him betraying Titus to the Inquisition.
- Lawful Stupid: Segues into this at times, like when he calls the Inquisition down on Titus.
- New Meat: Very young for a Space Marine, he doesn't even have a single service stud yet.
- Shoulders of Doom: As per usual.
- Sociopathic Soldier: Not an over-the-top one, but one of his first scenes has him Knee-capping an ork, watch it crawl around for a few moments, and then finish it execution-style. Then he mag-dumps into the ork's corpse with his bolter with an impassive scowl on his face until Titus gets his attention. That sort of pointless cruelty from an Ultramarine, who pride themselves on discipline and professionalism, stands out.
- "The Reason You Suck" Speech: Is the recipient of one from Titus, who points out that the Codex is supposed to guide and instruct, but being a Space Marine is meant to be more than just blindly following the Codex without question.
- Well-Intentioned Extremist: Follows the Codex to the letter, leading to him calling the Inquisition on Titus because of Titus´s ability to resist a ridiculous amount of Warp exposure.
Tactical Squad Corvus
A squad of Blood Ravens who joined the Imperial Liberation Fleet, they help Titus reach the Orbital Spire by fighting across a Chaos-held bridge.- Badass Creed: None shall find us wanting.
- The Cavalry: They're part of the Liberation Fleet making landfall, having joined up with other Imperial forces in response to a call for reinforcements.
- They make their appearance in response to Titus calling on any Imperial forces to aid him in getting to the Orbital Spire, already engaging the Forces of Chaos when Titus arrives.
- Continuity Nod: To Dawn of War II: Retribution, in the process practically canonising its Space Marine ending.
- Foreshadowing: Their sergeant mentions joining the Liberation Fleet with a force of Black Templars. Those Black Templars show up with Thrax to take Titus into custody in the ending.
- Interservice Rivalry: A friendly example, as when they are about to push through the Chaos forces the squad sergeant and Titus exchange their Chapters' respective creeds.
- Meaningful Name: Corvus is Latin for Raven.
- One-Man Army: Much like all Space Marines, but they live up to Titus' words about the Aurelian Crusade.
- The Cameo: They only appear as part of Inquisitor Thrax's escort.
- The Cavalry: They are part of the Imperial Liberation Fleet mustered to reinforce the Ultramarines and Imperial Guard still fighting to save Graia.
- Hero of Another Story: They were presumably battling the Chaos and Ork forces alongside the other Imperials while Titus fought his way to the Orbital Spire.
Imperial Guard
Second Lieutenant Miranda Nero

Second Lieutenant Mira leads the survivors of the 203rd Cadian Regiment. Mira's experience and skill as a tactician, coupled with her uncompromising humanity and refusal to give up, commands fierce loyalty among her men.
The 203rd Cadian Regiment was en route to another warzone when their troop carrier was suddenly diverted to Forge World Graia, as they were the only Imperial Guard force close to the planet. The Regiment was the only force that managed to reach the surface before the Orks captured the planet's defense guns.
They were crippled after the Orks cut them off from orbital support and reinforcements, forcing Lieutenant Mira to take command (albeit with the dying Regimental Colonel's consent), as she was the highest ranking officer left. All she wants is to save the soldiers she's sworn to lead, but she does not hold much hope of holding off the Orks much longer.
- Action Girl: Maybe a slightly more conventional example than some, given how it's literally her job. She was the highest-ranked soldier to survive the deaths of the higher officers in the regiment, and she rarely takes to the field in person (because if she did, the regiment may lose all of its leadership).
- Badass Normal: She earned the respect of a Space Marine after she managed the remaining and outnumbered Militarum forces to hold off against countless Orks for several days despite being a mere lieutenant. Really, that's all that needs to be said.
- Beauty Is Never Tarnished: Mira's a looker especially in contrast to the craggy, battle-scarred Space Marines and despite being shot at by an army of Orks for several days, the only sign that she's been in a fight is some dirt on her face. She doesn't even have the "tiny scar on the cheekbone" that many fanservicey 40k female characters get. Semi-justified in that her style of fighting has her hanging in the back and blazing away with her lasgun while using YOU as her meatshield.
- A Father to His Men: The other Guardsmen, who would normally not pay much respect or heed to a 2nd Lieutenant, practically credit her with the survival of the entire planet.
- Only Known by Their Nickname: Supplementary material reveals her full name, but in-game she is only ever referred to as Mira.
- The Not-Love Interest: With Titus. They obviously respect each other a great deal, but it doesn't go much further than that. It's probably for the best, considering it's neither the time nor the place (and even if it was, the Inquisition would most likely have them executed for it.)
- You Are in Command Now: Why is a 2nd Lieutenant in charge of a whole Regiment, normally commanded by a Colonel?Mira: I'm all that's left, my lord, unless my commanders rise from the grave. So far, they seem content to stay put.
Inquisition
Inquisitor Drogan

Inquisitor Drogan is a relentless psyker of the Ordo Xenos, and bears the physical and mental scars of a lifetime spent in the darkest corners of the galaxy.
Many years ago, he fell into the hands of fiendish aliens who tortured him for years. Since then, his hatred of alien species has driven him to develop innovative new ways of destroying them, and to pursue technologies and techniques thought lost or impossible.
His greatest creation is the Psychic Scourge, which channels tremendous amounts of Warp energy, provided by the Power Source, that can be tuned to destroy specific species, while leaving humans unharmed. Audiologs reveal that he was developing them at the behest of an Inquisitor Lord to find a way to free the Imperium of its need for classic Plasma power generators, which are very powerful, but highly bulky.
- Artificial Limbs: His right arm, which may or may not be as a result of his captivity and torture by Xenos.
- Badass Bookworm:Drogan: I am scientist and soldier both, Captain.
- Badass Longcoat: Over his armor.
- Being Watched: His audio logs has him mention that during his experiments whilst tapping into the immaterium, he felt that he was being watched. He shrugged off those concerns and continued with his research. Had he been more wary that outside forces were interested in what he was experimenting in, it's likely he would have been better prepared to deal with Nemeroth's daemonic agent.
- Crippling Over Specialization: His dangerous and careless experiments with the Psyhic Scourge are likely a result of him being a member of the Ordo Xenos and not the Ordo Malleus. His obsession with eliminating the xenos menace means he throws caution to the wind in regards to his experiments with the immaterium despite acknowledging the dangers of the warp. His lack of pre-caution, and not to mention being psychically weakened as a result, ultimately gets him killed by a daemon.
- Dead All Along: In a weird way, one you don't see much in 40K. The daemon took the time to kill him before inhabiting his corpse.
- Demonic Possession: After his death. Interestingly, he wasn't possessed while alive, the usual daemon means of operation, though that may be because he was both psyker and cyborg, which limit the means by which a daemon could control him without consent.
- Evil Is Not a Toy: It's not all that surprising his research with Warp energy would end badly..
- Fantastic Racism: It's encouraged among the citizens of the Imperium, but his took a level after being tortured horribly by aliens.
- Foreshadowing: Quite a few to the fact that he is daemonically possessed.
- The noise at the end of his video message definitely doesn't sound like something an Ork would make
- The wounds his body sustained definitely don't look like something an Ork could cause and the fact that they look downright fatal is also alarming. He tries to throwaway the last part as him using his psyker abilities to keep himself alive, but in reality he's a walking corpse.
- His own turrets shoot at him and the voice recognition software doesn't respond to his orders, he tries to brush it off. But it further proves that he isn't the Inquistor Drogan the Ultramarines think he is and his own security system knows better.
- Psychic Powers: He has the powers of a psyker, though the players never sees him use them. Because the daemon controlling his body literally can't, thanks to them stemming from an Imperial Sanctioning, and therefore not being in the daemon's powerset.
- Shout-Out: His hairstyle and head plate prosthetic brings to mind Jean-Baptiste Emanuel Zorg.
- Token Evil Teammate: Subverted Trope, despite the common usage of Inquisitors of this and fairly revealing pre-release trailers' implications. His research led to a lot of bad stuff happening within the game's plot, but he never intends any of it or actually falls to Chaos - he's killed before his corpse is possessed.
- Unwitting Test Subject: His personal audio logs reveal that he tested the psychic scourge on live (and captured) alien subjects, ranging from Orks, Aeldari, T'au and a Tyranid Lictor.
- Unwitting Instigator of Doom:
- His experiments were fully intended to create a weapon that could greatly help the Imperium in its war against the xenos. His experiments and the creation of the power source caught the attention of the Chaos Lord, Nemeroth, who sent his daemonic servant to kill him. The daemon then tricked Titus into opening a warp rift that allowed Nemeroth's forces to invade Graia, and Nemeroth used Drogan's power source to try to ascend into a daemon prince (which he may or may not have succeeded in doing)
- Posthumously, his actions are the reason for the events of Warhammer 40,000: Boltgun. His surviving research data and fragments of his power source were further experimented on by the techpriests of Graia several years later, and their experiments cause yet another chaos invasion to occur.
- Worf Had the Flu: His audio logs reveal that, before the invasion of Graia, he was sleep deprived, and the physic attacks he suffered during his experiments with the Psychic Scourge had greatly weakened his physic defenses. This made him easy prey for Nemeroth's daemonic servant.
Inquisitor Thrax

An Inquisitor who accompanied the Liberation Fleet. He appears briefly in the epilogue.
- Guttural Growler: He sounds like he smokes four packs a day. He also has what looks like cybernetic augmentations to his throat.
- Reasonable Authority Figure: While he does take Titus into custody after Leandros accuses him of being tainted by the Warp (He has to, given the severity of the charges and the implications should they be true), the manner in which he does so makes it clear that he's at least considering the possibility that the events leading up to those charges have a more benevolent explanation and that in the immediate term Titus will only be facing an inquiry, not an inquisition.
- Another indicator that he feels the charges are false is that he does not have Titus disarmed. An Inquisitor, who thought someone was corrupted by Chaos, would never let the possible heretic keep his weapons.
- The very first words out of his mouth are to express skepticism in Leandros's claim, and ask him if he's absolutely sure.
Enemies of Humanity
Orks
Warboss Grimskull

- Voiced by: Neil Maskell (English); Vladislav Kopp (Russian)
Warboss Grimskull leads the Waaagh! invading Forge World Graia, and is extremely cunning. As a result, his Waaagh! is well organized, making it all the more dangerous. He has conquered several worlds before reaching Graia, and if he gets his hands on the Warlord-class Titans on the Forge World, he could be unstoppable.
- Big Bad: He is the one leading the Ork attack. Becomes part of a Big Bad Ensemble with Nemeroth during the second half of the story.
- Badass Boast: He delivers a quiet one, which is quite Un-Orky, but it's well-earned, since he just wiped out a group of Bloodletter daemons after they pushed him off a ledge and he got back up without a scratch.Grimskull: I ain't so easy to kill, heh heh heh...
- Big Bad Ensemble: He leads the Waaagh! to conquer the planet, or at least loot it, and he kills Lt Mira Nero's superiors. With Nemeroth, he becomes this instead of Big Bad, thanks to the two of them each trying to loot the planet for different things.
- Boom, Headshot!: How Titus finishes him off after their final battle.
- Bullfight Boss: A rather difficult one, though he drops it in the third section of the fight.
- Genius Bruiser: For an Ork, anyway. His Waaagh! is rather well organized, and he orders them to capture and use the planetary defense guns, instead of simply looting them.
- Large and in Charge: Would you expect any less from an Ork Warboss?
- Mighty Glacier: In his boss fight he has two ways of attacking you, one is by charging at you and the other is to slam his fist into you. Both moves are slow and telegraphed which makes them easy to evade, but if either attack hits you you will either be dead or near-death.
- Nice Job Fixing It, Villain: He saves you and your squad from Nemeroth... not that he's really bothered either way.
- Not Quite Dead: Gets swarmed by several Bloodletter Daemons and knocked off a ledge into the depths below. He reappears from said ledge, no worse for wear, a minute or two later.
- Oh, Crap!: He gets a visible moment of this in his first appearance when he realizes one of his ship's main guns is about to be pointed right at him. He immediately hightails it out of there.
- Offscreen Moment of Awesome: It can be inferred he killed a pack of Bloodletters without even being injured, before taking on their boss. And the fact that he's seen afterwards means that he probably forced Nemeroth to retreat, either by beating him or by being so tough that Nemeroth wasn't able to kill him.
- Pre-Mortem One-Liner: Grimskull and Titus exchange these after their last battle.Grimskull: "I ain't finished with you, Space Marine!"Titus: "But I am finished with you, Ork."
- Stationary Boss: What he becomes in the third section of his boss fight.
- Villainous Rescue: Attacks Nemeroth while the Chaos Lord has Titus's entire squad at his mercy and is about to get his claws on the Power Source. Not that Grimskull cares what happens to Titus and his men, it's just that Nemeroth was seen as being between him and his goal.
Forces of Chaos
Sorcerer Lord Nemeroth

Nemeroth is the leader of the Chosen of Nemeroth Warband, which is invading Forge World Graia. He is a Chaos Sorcerer Lord with strong psychic powers, and is equipped with Terminator armor and a pair of Lightning Claws. Like most Chaos Space Marines, he is sadistic and arrogant.
- Ambiguous Situation: Given that his laughter and voice are heard after Titus crushes his head, it is unknown if Nemeroth is dead for good or he still exists within the warp, especially when you consider that his ascension to daemon princedom seemed nearly complete.
- Bald of Evil: From what little can be seen of his head.
- Big Bad: He usurps this role from Grimskull once he arrives on scene.
- Big Bad Ensemble: With Grimskull. They're each there to loot different things. Grimskull wants the Titans, Nemeroth wants the Power Source.
- The Chessmaster: He's a Chaos Sorcerer, it comes with the job.
- Clipped-Wing Angel: During the final battle, Titus attacks Nemeroth while the latter is in the middle of transforming, meaning he can't unleash the full power of a Daemon Prince.
- Cutscene Boss: Basically how you beat him
- Final Boss: He is the final enemy that Titus faces during the invasion of Graia, and his (possible) death marks the full triumph of the imperial forces.
- Flunky Boss: Before you take Nemeroth on, you have to fight four waves of his minions. They're more difficult to beat than Nemeroth himself.
- Knight of Cerebus: The whole plot gets a lot more serious when he's involved.
- Genius Bruiser: A hulking mountain of a man clad in terminator armor, Nemeroth is still ultimately a Sorcerer Lord, and Titus and his squad spend 75% of the game obliviously playing into his plans. If not for Titus's inexplicable warp resistance, Nemeroth probably would have won.
- Good Scars, Evil Scars: The left side of his mouth is ripped open.
- Large and in Charge: While not as big as Grimskull, he's still huge even for a Space Marine in his Terminator armor.
- Magic Knight: He's a Chaos Sorcerer, but also nasty with those claws of his. Just ask Sidonus.
- One-Winged Angel: Though he only gets halfway through the transformation before you take out all his minions and force him to fight by himself.
- Soft-Spoken Sadist: Every bit as hammy as any self-respecting Chaos Lord, but despite his daunting appearance, his voice never rises above a hissing whisper.
- We Can Rule Together: Before the final battle, he invites Titus to join him, so that he can lead the Ultramarines in domination of the galaxy with him at its head. Titus isn't going to be swayed by that.