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Characters / Star vs. the Forces of Evil: Marco Diaz

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Main Character Index | Main Characters (Star Butterfly, Marco Diaz) | Mewni | Butterfly Family (Eclipsa Butterfly, Meteora Butterfly) | Earth | The Forces of Evil (Ludo's Forces, Septarsis) | Saint Olga's Reform School | Other inhabitants of the Multiverse (The Magic High Commission)

Marco Ubaldo Diaz

https://static.tvtropes.org/pmwiki/pub/images/marcodiaz.png
"Frankly, I like taking risks. And would welcome a little danger in my life!"
Voiced by: Adam McArthur
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Older son of the Diaz family, and also a Karate student with a red belt. Shortly after meeting her, he becomes Star's earthly friend, guide, and combat partner.


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    A-F 
  • Action Survivor: He becomes this after surviving multiple dimensions for sixteen years.
  • Adorkable: Marco has a thing for safety, but desperately wants to become a "misunderstood bad boy."
  • Almighty Janitor: Stripe or not, he's only a green belt (about halfway through the learning stages in martial arts). He's still kicked more monster ass than most people. The most badass green belt ever. Season two reveals that he has been a green belt for five years though not because of his skill level, but because his sensei is also only a green belt. At the end of "Red Belt", Marco is now a red belt.
  • Amicable Exes: In "Sophomore Slump" Jackie gently breaks up with Marco because she believes that their relationship will sour overtime because Marco can't accept that he's left Mewni as well as Jackie believing that she's forcing Marco to stay on Earth to make her happy. When they meet up again in "Britta's Tacos", Marco is afraid that he was horrible boyfriend to her, but she reassures him that he was a "standard boyfriend" and that they just didn't work. At the end of the episode, Jackie advises him to go after Star while Marco smiles at her and Chloe skating off together while holding hands.
  • Anguished Declaration of Love: Marco reluctantly confesses his crush to Jackie during "Sleepover" in order to spare the group from the consequences of the Truth or Punishment game.
  • Authority Equals Asskicking: In "Divide", Marco was in charge of the "Marc-nificent Seven". He was the founder and was Star and Mewni's (present) best warrior.
  • "Awesome McCool" Name: He sees his middle name as such.
  • Badass Biker: While Marco spent sixteen years hunting Hekapoo, he gained a "dragon-cycle", a six pack and a Badass Beard.
  • Badass Bookworm: Physically unimposing, fastidious A-student... who can karate-kick monsters three times his size and send them limping home.
  • Badass Cape:
    • In "Running With Scissors", future Marco wears his hoodie as a cape, since he's long grown out of it. He also does this during his spar with Star in season 3.
    • Marco is gifted a cape from River after the Battle of Mewni, and constantly wears it when he returns to Earth. He stops wearing it after he learns that it's just a meat blanket, and that the honorary knighthood he was granted wasn't real either.
    • In "The Knight Shift", when Eclipsa confers a real knighthood on Marco, Star gives him a new hand-made cape with symbols representing some of their adventures together on the back. At the end of the episode, Marco returns the favor by making a similar cape for Star. When they sit together, those symbols combine to form a large heart.
  • Badass Normal: Has no special powers and is good enough at karate to hold his own against Ludo's henchmen and other assorted monsters.
  • Bare-Fisted Monk: Marco rarely uses weapons to fight his opponents, and uses his karate skills at every opportunity in combat (despite Star being the other half of the reason why the pair can win fights in the first place - when Star is preoccupied with the main villain or distracted by the events of the episode, Marco falls into an unfavourable position where he is either grappled or chased around the battlefield). Marco did eventually become a Combat Pragmatist and a Master Swordsman in "Running With Scissors" while pursuing and hunting Hekapoo, and still remembers these skills (albeit not at the same level without his muscular body).
  • Battle Butler: Marco was initially tasked to be Star's guide to human culture, he also cooks nachos for her and himself and finally Marco and his parents also allow her to live with them. Marco is skilled at karate and is a Bare-Fisted Monk at his best but they are friends regardless. In season 3 he becomes her squire.
  • Beauty Mark: Next to his right eye.
  • Be Careful What You Wish For: Marco wanted a little more danger in his life and Star soon entered it, bringing a lot of that with her. He sarcastically quipped that if his family wanted some upbeat energy in their home, they could've just adopted a litter of puppies instead of letting Star live with them; she immediately summons some cute puppies... that fire lasers out of their eyes. When he admires the room she summoned and wishes he had one of his own, Star tries to give him one and creates a portal that sucks all his furniture instead.
  • Best Friend: Marco is Star's best friend on Earth.
  • Big Brother Instinct: After the birth of his new sister Mariposa, Marco wastes no time in becoming the most attentive, protective brother he can be.
  • Big Ol' Eyebrows: In comparison to most of the people on the show. Just look at them!
  • Blood Knight: Although he is calm, savvy, and safety conscious in most situations, Marco is also an avid martial artist who really likes fighting evil monsters, and thus sees Star's Fight Magnet life as a plus.
  • Bodyguarding a Badass: Marco is responsible for Star's safety while she is on Earth, as he's her guide to Earth culture, and tries to get her out of trouble with the authorities when she makes a mistake. Marco also fights to protect her and the wand from Ludo and the other monsters when they become overwhelming or too powerful for her to handle. In season 2 he still has to fulfill his some of his responsibilities from season 1 despite the hostile monsters having fewer appearances, because he still has to help Star keep control of her magic and fight off Ludo.
  • Body Horror: In "Monster Arm", after he breaks his arm while practicing karate, Star attempts to fix it via magic. She instead transforms his arm into a giant tentacle, which turns out to have a mind of its own and be quite malevolent and destructive.
  • Brainy Brunette: Dark brown hair + Only Sane Man + Good with Numbers + Cloud Cuckoolanders Minder = A really intelligent kid.
  • Butt-Monkey: His injuries and misfortunes are frequent and definitely Played for Laughs.
  • Camp Straight: Downplayed. Marco is In Touch with His Feminine Side (see trope below for more details), but he also has had a HUGE crush on the female Jackie-Lynn Thomas since they were children, and he is an avid martial artist with dreams of being a super-buff badass warrior and/or a knight.
  • Cannot Spit It Out: With regards to his feeling on his crush, Jackie-Lynn Thomas. Marco has been crushing on her for years and he's still struggling to say something past, "Hello," to her. As of "Sleepover", this is no longer the case anymore.
  • Can't Stay Normal: When he returns from Heckapoo's dimension, he struggles to adjust from his high adrenaline lifestyle and has forgotten his computer's password. This is also shown in "Sophomore Slump", as a result of his adventures with Star and life on Mewni. Marco has very little in common with his Earth friends and Jackie eventually and gently breaks up with him because she fears that their relationship will sour overtime because Marco can't fully disconnect himself from Mewni no matter how hard he tries.
  • Cape Swish: Does this at the end of the Season 3 intro.
  • Catchphrase: Marco's is a Big "WHAT?!".
  • Charles Atlas Superpower:
    • He must be really good at karate, considering he can punch back one head from a massive Hydra!
    • He mangages to karate chop Tom's hand off.
    • He LITERALLY punches a hole clean through Toffee's chest, which would've killed him if it weren't for his regenerative powers!
    • After spending sixteen years getting ripped in Hekapoo's dimension, he's strong enough that the wind from unsheathing his katana is strong enough to blow out a flame from about ten yards away.
  • Chick Magnet:
    • In addition to heavy Ship Tease with Star Butterfly to the point that she has developed a crush on him, he's attracted the attention of Jackie, Janna has flirted with him quite a bit, Hekapoo shares some Foe Romance Subtext with him, and after Kelly breaks up with Tad for good, he has a bit of Ship Tease with her as well.
    • The "FanCo13 LIVE" chat held after "Starcrushed" aired also had StarFan13 calling Marco very handsome in his prince costume from "Face the Music".
  • Childhood Friend Romance: Marco has been crushing on Jackie since kindergarten, but he gets so nervous around her that he hasn't made any progress with her in all those years. He finally asks her out in "Naysaya" and they start dating in "Bon Bon The Birthday Clown".
  • Cloudcuckoolander's Minder: Was introduced to Star to act as her guide on Earth. "School Spirit" and "The Banagic Incident" illustrates just what happens when a flighty, hyperactive Fish out of Water armed with magic is left to her own devices.
  • Clueless Chick Magnet:
    • He gained attention from multiple women and doesn't notice. The best example of this being Star, as he only found out when Ruberiot spelt it out to him but even then, he was struggling to comprehend what happened until Star confirmed her feelings for him.
    • Star and Marco's Guide to Mastering Every Dimension shows that it's subverted as far as Janna is concerned, as he recognizes her teasing behavior as her flirting with him.
  • Combat Pragmatist: Occasionally mixes up karate with utilizing his environment to fight, be it with boxes, a book, or a giraffe head.
  • The Conscience: He's usually the one who keeps Star from causing too much trouble. In later seasons, she started getting the swing of things and making her own choices. He was this to The Seeing Eye spell, despite the spell not fully understanding the consequences of telling the truth.
  • Control Freak: His reputation as the "Safe Kid" didn't come from nowhere. When he meets Star he's pulling her out of every minor obstacle (some understandable, some not). However, this gets zig-zagged, especially with regards to fighting, because he's also a Blood Knight; when he learn that Star has a price on her head he's absolutely thrilled at the prospect of fighting monsters.
  • Cool Bike: Marco has a dragon cycle, as they've spent 16 years together it overlaps into Companion Cube territory as he affectionately calls her Nachos.
  • Cool Loser: He's not exactly a loser, but for such a smart, nice, athletic kid, he's not too popular or respected either. This seems to be partly caused by his initial safety conscious and wannabe bad boy status, along with occasional bad luck. However, his smarts and karate skills do earn him some respect at times but for not very long.
  • The Corruption: Marco gets controlled by his new tentacle limb in "Monster Arm". It's implied that even after being cured, it still dwells inside him.
  • Cowardly Lion: In season one Marco was safety oriented and would be the first of the co-protagonists to try to reason with the monsters i.e Lobster Claws and Princess Smooshy. Marco also refused to fight Lars out of fear until Monster Arm dealt with him. When he is in the middle of fight Marco can hold his own really well and enjoys every second of it when he's in a favourable position.
  • Curtains Match The Windows: Dark brown hair and brown eyes.
  • Dark Is Not Evil: He is one of the protagonists and has several dark items associated with him. The blood moon and the wand's appearance in his ownership.
  • Dashing Hispanic: Marco is half-Hispanic and is the heroic deuteragonist of the series.
  • Deadpan Snarker: Exhibits a dry sense of humor.
  • Deuteragonist: The second main focus character after Star.
  • Disguised in Drag: In "St. Olga's School for Wayward Princesses", Star disguises him as a princess with a poofy pink ballgown and Rapunzel Hair and they join in with a group of new arrival princesses. Despite initially griping that he wanted to impersonate one of the guards, by the end he asks to keep the dress.
  • Does Not Like Spam: Enforced. Thanks to Janna's off-screen hypnotism, Marco now dislikes nachos, which was his favorite thing to eat. Now, every time he thinks of nachos, he feels the urge to vomit.
  • Dork Knight: Marco practically gushes after he and Star defeat Ludo and his men.
  • Dude, Where's My Respect?: In the earlier seasons, Marco wasn't as popular as he wanted to be. He was frequently unlucky and the receiver of Star's magic despite his skills in karate and overall likability.
  • Eagle Land: Marco chants, "USA! USA!" in celebration when he thinks he successfully grew out a beard, which is a pretty uniquely American thing to do.
  • Embarrassing Initials: A test paper in "Match Maker" reveals his middle name is Ubaldo, which makes his initials spell out "MUD".
  • Embarrassing Ringtone: His "Space Unicorn" ringtone which he claims is supposed to be ironic.
  • Famed In-Story: Marco has a reputation in Mewni. At St. Olgas he's a liberator under the name of "Princess Turdina", and the inventor of the "Sword Hand Dance".
  • Fingerless Gloves: Marco's 30-year-old self has a pair of fingerless biker gloves.
  • Fire-Forged Friends: He and Pony Head become cool with each other this way.
  • Flanderization: People who mention Marco being overly safety conscious in the first episode only to be dropped afterwards don't realize that it's a weird inversion of this. This trait still shows up in other episodes (see the gift he made for his parents' anniversary in "Diaz Family Vacation", and the whole plan to keep Ferguson safe in "School Spirit"), but the first episode greatly exaggerated it at the cost of other parts of his personality, like being a little of a Neat Freak (as seen in "Quest Buy" or "My New Wand!"), or having an interest in psychology (as seen in "Sleep Spells").
  • Foil: The series highlights their different reactions to the thought of having feelings for the other: While Star's feelings have been building up the more she was drilled despite saying otherwise, Marco remained indifferent to the possibility, not thinking anything would come of it. When it came to Star admitting she has a crush on Marco; Star attempts to avoid acting on it further, while Marco moves on and doesn't make a big deal about it... for a time.
  • Friends with Benefits: Downplayed. He and Kelly become "breakup buddies" as they kiss and hold hands while dealing with their respective heartache. By the time of "A Boy and His DC-700XE", Marco broke up with her.
  • Friend Versus Lover: He distrusted Tom when he introduced himself as Star's ex-boyfriend, although things improve between them, they are still a bit conflictive when Tom and Star are together again, however they get better then.
  • Full-Name Ultimatum: Whenever Star is angry or annoyed with him then she'll call him by his first and last name.
  • Future Badass: He was in multiple dimension for sixteen years and gained a six pack as well as alot of muscle but when he returns to earth, he is reverted back to his original age and body because it had only been eight minutes.

    G-L 
  • Go Mad from the Revelation: Is temporarily driven insane after reading Eclipsa's section of the spell book in "Page Turner".
  • Good Scars, Evil Scars: Zigzagged. In his adult form, Marco has a scar over his left eye but is no less the heroic badass. But, in his regular form, he doesn't have a scar.
  • Good with Numbers: Zigzagged. Marco has good math skills and used the metric system to find Star's charger, but admits to Jackie that one of his many insecurities is over his inability to do long division.
  • Gratuitous Spanish: Consider Marco is Hispanic, he does drop Spanish words or phrases occasionally.
  • Has a Type: When "The Other Exchange Student" showed a picture of him getting kissed by a previous blonde foreign exchange student (Daniella from Belgium), fandom jokes that he's into blondes have cropped up since his crush Jackie is also blonde and he has had plenty of Ship Tease with Star.
  • He Cleans Up Nicely: In "Bon Bon The Birthday Clown", both Star and Jackie are stunned when they see him dressed up for his dance date with Jackie.
  • He Is All Grown Up: In "Running with Scissors", Star finds herself very attracted to his handsome adult version, calling him, "Beautiful Stranger," before she even realizes who he is. It's humorously subverted a minute later when he and Star travel back to Earth and local time catches up with him, but she just happily pokes at the flab where his six-pack used to be.
    Marco: No! My hot bod! Where did it go!?
  • Heroes Love Dogs: After Star creates a litter of laser puppies, he decided to take ownership of them.
  • Heroes Prefer Swords: According to Janna's list of Marco's personal information "Gift of the Card", one of his passwords is "O={==>SW0RD". In "Running with Scissors", 30 year old Marco is a master swordsman.
  • Heroic Build: Zigzagged. After spending over a decade searching for Hekapoo, he became absolutely ripped, but only has this form when in Hekapoo's dimension. Otherwise, Marco has lean built. But, in either form, he's still heroic.
  • Heroic Self-Deprecation:
    • In "Sleep Spells", it's revealed that he keeps a record of him and Star saving each other, and he resents the fact that she's saved him more times than he's saved her. After saving her from a hostile escaped princess, he tells her that he feels mundane by comparison, since she's a magical princess from another dimension. Star assures him that they don't need to compete, because he is certainly awesome.
    • In "Naysaya", it's implied that Marco is such a mess of insecurities that he actually wants to get physically punished for petty reasons.
      Marco (referring to the Naysaya): How do I get rid of it?
      Tom: Just let it run its course. Once it's shouted all your worst, most shameful secrets, it'll wear off.
      Marco: And how long will that take?
      Tom: It depends. How insecure are you?
      Marco: (Beat) Oh no...
  • Hidden Depths:
    • He is shown to be knowledgeable about Victorian-era interior design.
    • He's also shown to be quite the film buff (in a rare VHS store, he clarified that he didn't mean the award-winning film when he asked for a pair of scissors).
    • Most dudes don't care about the differences between shades of the same color. He specifically dubs "Plum Purple" and "Prussian Blue" as his favorites.
    • In an effort to impress Jackie during "Sleepover", he shows that he can play jazz piano on his electric keyboard.
    • It's shown in "Friendenemies" that the kid can really sing.
    • As shown in "St. Olga's Reform School for Wayward Princesses" and "Death Peck", he has quite a knowledge of art.
    • The episode "Deep Dive" hints that Marco may have a hidden dark side to his careful, insecure nature. Something of note is that when he uses Star's wand, which changes its shape to reflect the person who uses it, the wand takes on an oddly sinister form, with a spear-tipped, spiked faceplate, decorated with a pair of bat wings.
  • Hipster: Marco occasionally shows signs of being one, such as his "Space Unicorn" ringtone which is "supposed to be ironic."
  • Humanity Is Infectious: Marco has a strong effect on non-humans. His humanity has rubbed off on Star and Tom and helped them mature and recognise the problems in their own lives.
  • Hunk: His 30-year-old self certainly wasn't lacking in terms of rugged good looks.
  • Hypercompetent Sidekick: To Star; he's a lot more savvy, patient, intelligent, and a much better strategist.
  • Hypocritical Humor: One episode has him point out that the martial arts are about honor and discipline. He then says that he wants to one-up some Spoiled Brat that takes classes with him.
  • Hypno Fool: In "Deep Dive", Marco claims he can't be hypnotized. But then Janna casually reveals that she hypnotized him ages ago and even put a trigger in him to make him fall asleep. He calls her out on her bluff but the moment Janna snaps her fingers and says "chickenbut", he immoderately falls asleep.
  • Icon of Rebellion: Kickstarted a princess revolution in St. Olga's School For Wayward Princesses, as "Princess Marco" overthrowing the initial regime and apparently turning it into a party school. This came complete with Barack Obama-styled posters and a huge amount of merchandise. Apparently, he gets a $650 royalty check for it, too. However, this is deconstructed later, because the students took his ideals too far and it caused their morals to dip to the point of having no sense of boundaries and cutting classes.
  • I Know Karate: Marco uses karate to help in battles. The fact that he takes karate lessons and that he has a green belt probably helps.
    Star: You can fight?
    Marco: It's called... karate! (chops a monster)
  • Improvised Weapon: Lacking a magic wand or a trademark weapon of his own, he makes do with what he can.
  • Intergenerational Friendship:
    • Marco becomes friends with his karate sensei, Sensei Brantley. In fact, it seems that, after Star, Sensei is Marco's best friend.
    • Seems to have developed this with King River. He's more casual with the king than he is with the queen, and he even calls River by his first name with no title.
  • Interspecies Romance: Downplayed. He (a human) and Kelly (a Woolett) become break up buddies before the latter breaks it off.
  • In Touch with His Feminine Side: In "St. Olga's School for Wayward Princesses", despite initially disliking to be Disguised in Drag, by the end of the episode he refers to the captive girls as his fellow sisters and asks if he can keep the dress; he wears it again in "Heinous" and continues to wear it through family game night. In "Gift of the Card" he wears ballet slippers, saying they're comfy to wear around the house, and he states that plum is one of his favorite colors. In "Friendenemies" it's revealed he's a big fan of the Boy Band "Love Sentence". He's also occasionally referred to as a girl by some characters and almost never seems to mind.
  • I Resemble That Remark!: Marco complains that he doesn't know why people think he's so safety-obsessed while making sure Star avoids various minor hazards while walking.
    Marco: You wear a helmet in the gym shower one time and you're branded for life.
  • Ironic Name: "Marco" manages to be this and a Meaningful Name. In Italian, "Marco" means "Mars" (the Roman God of War); it's ironic given his consciousness for safety.
  • I Will Find You: He dedicates sixteen years of his life to find Heckapoo and defeat her clones. When Star leaves Earth after confessing her crush on him, Marco decides to go find her because "that's what friends do".
  • Jerk with a Heart of Gold: Desperately wants to be perceived as one to get rid of his Embarrassing Nickname. He isn't.
  • Knight in Shining Armor: He isn't a knight yet. He is Star's right hand man and has such a high moral compass and strong determination that he can rally the "Marc-nificent Seven" together to assist him in distracting Meteora. In "The Knight Shift" he gets promoted, but ultimately turns it down because he realizes he doesn't want to spend his entire life devoted to Mewni. He's only willing to make that much of a commitment to Star.
  • The Knights Who Say "Squee!": Marco is huge fan of Love Sentence, and it shows when Tom shows his shrine that is dedicated to Love Sentence. He also turns into a platonic Fanboy when Mackie Hand is resurrected.
  • Kung-Shui: Marco is shown to use the environment to fight his enemies or destroy it in the process.
  • The Lancer: While he and Star are co-protagonists, Star is the titular, central character whereas Marco is recognised as the deuteragonist. Marco is commonly the voice of dissent, is a Badass Normal to Star's magical abilities and finally Marco is the Straight Man to Star's wise guy.
  • Lightning Bruiser: Marco became this so he can hunt Hekapoo and is revealed to have maintained it.
  • Limited Wardrobe: Lampshaded in "Match Maker".
    Marco: I like red. I like hoodies. So I bought a dozen of them.
  • Living Emotional Crutch: It's subtly implied that he is becoming this to Star, even more as she is entering in the dark path of magic. Any time that Star thinks she is losing Marco or he is in a real danger her magic becomes chaotic and uncontrolled and she gets mad.
  • Lovable Jock: Marco is a karate practitioner and an all around Nice Guy.
  • Lovable Nerd: Marco is a dorky kid (which is often mentioned by others), but it makes him quite endearing and well-liked.
  • Love Epiphany: In "Mama Star", as the amnesia effect of the Realm of Magic starts to kick in, Marco rambles and argues with himself about how everybody else present has a reason to risk the trip but he doesn't, ending with the realization that he does in fact have a reason to be there: he loves Star. Then the magic fully buries his memories, sparing him from having to deal with the fact that his whole monologue was spoken out loud.
  • Loving a Shadow: In "Sleepover", Marco admits that he's unsure about whether he has a crush on Jackie because of who she is as a person, or because he has put her on a pedestal in his mind.
  • Lunacy: While his connections with the moon is yet to be explained. The Blood Moon presents itself to Marco while he was on a date with Jackie, which lead to him discovering that Star was in danger. When Marco wields Star's wand, Marco gains a pair of crescent moon marks on his cheeks.

    M-R 
  • Made of Iron: He can take quite a lot.
  • Mage Killer: Marco can take on mages and demons with his knowledge and skills.
  • Master Swordsman: Marco is one of the best swordsmen in Mewni, due to his experiences in the other realm.
  • Masculine Girl, Feminine Boy: Star aside, he also has this dynamic with both Jackie and Janna, who are both tomboys.
  • Mixed Ancestry: Mexican on his father's side and Caucasian on his mother's side.
  • Moment Killer: In "Is Another Mystery", he accidentally interrupts an intimate moment between Star and Tom.
  • Morality Pet: Downplayed. He and Hekapoo have an Odd Friendship and she doesn't change into a better person just because of her relationship with Marco, but does grow to care for him.
  • Mr. Fanservice: In one episode, he spends 16 years in a dimension hunting clones of Hekapoo which results in him becoming an incredibly muscular, good-looking guy that made Star drool over. Even female fans of the show thought so as well.
  • Muggle Best Friend: For Star. Though he is capable of serious butt-kicking himself.
  • My God, What Have I Done?: Inverted during "Freeze Day" where he's more horrified by what he didn't do.
  • Neat Freak: He always organizes all of his stuff, and even makes sure that his toiletries are not one inch out of place.
  • Never Live It Down: In-Universe, the one time he wore a helmet in the shower made the rest of the school brand him as the "Safe Kid".
  • Nice Job Breaking It, Hero!: In "Heinous" it's revealed that Marco became the face of a revolution after releasing the captured princess' in St Olga's Reform School, destroying the school in the process. As a result of the revolution the princesses became law breaking and rule disobeying anarchists.
  • Non-Action Guy: Averted; despite being set up as the typical Muggle Best Friend, Marco is not totally useless in a fight relative to Star due to his karate training.
  • Not So Above It All: Tries to convince Star to stop playing Flags when he sees how violent, ruthless, and divisive it is. Ends up stealing the win while everyone is distracted.
  • Number of the Beast: Subverted. His dragon bike Nachos has the license plate number 667.
  • Oblivious to Love: Marco seems to have no idea of Star's growing crush on him and how it's affecting her that he's now dating Jackie instead of her until "Face the Music" and "Starcrushed".
  • Odd Friendship: With Hekapoo, a carefree, overconfident, trollish ageless being whose personality contrasts with his careful and responsible personality. The fact that she is still in contact with Marco after the Magic Commission's corruption is exposed says a lot about their friendship.
  • Official Couple: By the end of the series with Star.
  • Offscreen Moment of Awesome: He apparently spent 16 years in another dimension hunting Hekapoo which gradually turned him into a badass.
  • Older Alter Ego: Marco's 30-year-old self in Hekapoo's dimension is more muscular and macho in personality than his scrawny teenage self.
  • Older Than He Looks: Subverted. Thanks to his time spent in Hekapoo's dimension, Marco is chronologically in his early 30s, though he reverted back to his teenage body upon returning to Earth. When asked about this in one of his live streams, he described the events as a distant childhood memory, implying he is also mentally and emotionally a teenager again as well. Marco heads back to the Neverzone in Season 3 & 4, and we see teenage Marco become more confident and skilled because of his time there.
  • The One Guy: Since Alfonzo and Ferguson have had almost no screentime in season 2, Marco has become the only guy in a group of school friends consisting of himself, Star, Janna, Jackie, and StarFan13.
  • Only Sane Man: Justified. His best friend is a Pretty Princess Powerhouse and Cloud Cuckoolander from another dimension who doesn't know anything about Earth culture.
  • Ordinary High-School Student: Until he met Star.
  • Our Founder: He founded the rebellion of princesses.
  • Out of Focus: In Season 3, he loses a lot of airtime because of the show's increased focus on Mewni politics. It's somewhat appropriate, in that his subplot at the time is partly about having to deal with feeling sidelined and undervalued after he gave up everything to be with Star, but it means he's often an Absentee Actor or confined to comic relief cameos.
  • The Paladin: He isn't a knight of Mewni yet but his fights against the likes of Heckapoo and Meteora show him as this.
  • Pals with Jesus: He has Foe Romance Subtext-fueled Ship Tease with Hekapoo, a member of the Magic High Commission.
  • Papa Wolf: Inverted. Marco is very protective of his parents, as evident by him attacking Miss Heinous when he believes that she harmed them in some way.
  • Paper-Thin Disguise: His disguise as "Princess Marco Turdina" just feels rather forced and somewhat contrived; he doesn't look that much different with only a poofy dress and no changes to his hair aside from the addition of a ponytail, that it wouldn't look so convincing. Miss Heinous however, was easily fooled. So were the other princesses.
  • Perma-Stubble: Marco's 30-year-old self has perma-stubble and is a Future Badass.
  • Properly Paranoid: In "School Spirit", Marco believes that the school's rival football team are going to kidnap Ferguson like they used to do with the schools previous animal mascot despite everyone else thinking that it's crazy. Guess what happens the second Marco leaves him alone to talk to Star?
  • Rank Up: In season 4, Marco starts off as Star's squire before transitioning to a Knight.
  • Razor-Sharp Hand: He cuts off Tom's hand with a karate chop.
  • Razor Wind: He learned this when he was hunting Hekapoo in "Running With Scissors". He uses his sword to direct wind at a pair of Hekapoos, which defeats one of them.
  • Red Is Heroic:
    • Marco wears a red hoodie and is the deuteragonist of the series.
    • In "Red Belt", he becomes a red belt.
  • Relationship Upgrade: In "Naysaya" Marco finally asks out Jackie-Lynn Thomas and she invites him to go see a movie with her and the episode "Bon Bon The Birthday Clown" has Jackie asking him to go to the school dance with her which then turns into date and they share their First Kiss.
    • In "Here to Help", Star and Marco admit they love each other and officially become a couple.
  • Rebellious Spirit: Despite Marco claiming to be a rule-follower, his first instinct is to form a rebellion against institutions and rules he deems are wrong, such as against St. Olga's due to its use of brainwashing, and against Ludo in Battle For Mewni.
  • Running Gag: Marco always has exactly $650 dollars on him to spend all at once.
  • Rugged Scar: Marco's 30-year-old self has a scar on his left eye.
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  • Save the Villain: Ends up saving the lives of Jeremy in "Monster Arm" and the Silver Hill Prep Warriors in "School Spirit" despite initially being antagonistic towards both parties.
  • Sexier Alter Ego: His 30-year-old self is a tall, gorgeous Hunk with abs and a Rugged Scar.
  • She Is the King: Inverted Trope. Marco is the founder of a group of rebellious princesses who fell under his banner when he lead an uprising in St. Olga's. He eventually stepped down after admitting that he's a boy and Princess Arms soon took the mantle as leader.
  • Sleeping Their Way to the Top: Downplayed. Higgs angrily tells Marco that the only reason he even is a squire is because he's the princess' boyfriend. Though she was wrong in Marco's relationship with Star as well as the many feats he has done, she did make a point on how easily he obtained his squire position.
  • The So-Called Coward: Quick to Panic and Swift to Action.
  • Socially Awkward Hero: Despite his enjoyment of fighting and capability of taking on monsters twice his size, he is very awkward around others and safety-minded in mundane situations.
  • The Squire: Marco wanted to be a squire so he can eventually earn knighthood in Mewni, so he tries to be one for the only knight available. However Star doesn't want Marco to hurt himself, so she decides to make him her squire. But really, it's only a title.
  • Straight Man: As the more savvy, levelheaded one, Marco is often this to Star, although he does have his own quirky traits.
  • Supporting Protagonist: While he is one the main protagonists. Star is the central focus.
  • Talking the Monster to Death: Manages to get through to Tom with some choice words and a few dozen matches of ping-pong. He attempts to do so with both the Truth or Punishment box and the Friends-Til-The-End Quest Buy gift card, but fails.
  • Tattoo as Character Type: When he was hunting Heckapoo for sixteen years, he gained a tribal tattoo of a pair of scissors on his left bicep, but he loses his tattoo when he returns to earth.
  • Taught by Experience: He was a green belt for a while, and, due to his master only being green at the time, never went past it for five years. From how much monster ass he's kicked despite that, it's shown that he's definitely made the most of those five years.
  • The Team Normal: He was born and raised on Earth, and has had a relatively normal life.
  • Teeth-Clenched Teamwork: With Ponyhead before she warmed up to him.
  • Thrill Seeker: Marco would like a little danger in his life. Thanks to Star, he got his wish by getting to fight monsters and go on interdimensional adventures on a nearly daily basis. And he couldn't be happier about it. Apparently, this is why he feels Earth is too limiting and mundane by Season 3.
  • Trigger Phrase: Played for Laughs with "Chickenbut", which puts him to sleep in flash. And apparently, anyone can use it.
  • Troubled, but Cute: Invoked. In a desperate attempt to rid himself of the title "Safe Kid", Marco tries to mold himself into a "misunderstood bad boy". Nobody buys it.
  • Turn the Other Cheek: Marco has shown to be quite forgiving of those who have either annoyed and/or tried to hurt him, even Tom.
  • Unholy Holy Sword: When he wields Star's wand, it doesn't look as heroic as it does when Star wields it. Marco also has several connotations with the Blood Moon.
  • Uptight Loves Wild: Marco, who is bit of a Neat Freak and is even nicknamed "Safety Kid", has a crush on skater girl Jackie-Lynn Thomas, and has some Ship Tease with his very wild best friend Star.
  • Victory Is Boring: After saving Mewni in the Season 3 premiere, Marco gets honorary knighthood and everything, but once he returns home, Marco can't quite celebrate his achievements back there, and feels life on Earth is just too limiting.
  • Vitriolic Best Buds:
    • While Pony Head hasn't gotten over calling him "Earth Turd", she still sees Marco as one of her besties since their adventure in St. Olga's. Their relationship somewhat improved over time.
    • While they lean slightly more towards the vitriolic part, this is his and Tom's dynamic as of the conclusion of "Friendenemies". "Naysaya" implies that they've been hanging out off-screen, so a lot of their friendship is unseen, and Tom shows a rather friendly side to him.
    • Despite the trouble Janna likes causing for Marco, and his bitterness (and minor fear) towards her for doing so, they do value each other as friends.
  • Vocal Evolution: In Season 1 Marco's voice was fairly deep, but had a tendency to crack occasionally (as is fitting for a boy his age). From Season 2 onward, Marco's voice has taken on a slightly higher pitch and become more prone to squeaking.
  • Wacky Parent, Serious Child: Marco is more down-to-earth than his folks. He admits in "Goblin Dogs" that he's sometimes not sure whether he's the child and they're the adults or the opposite.
  • Weak, but Skilled: He may just be an ordinary 14-year-old, but his impressive karate skills and tactics enable him to take on monsters and creatures much bigger than himself.
  • Weaksauce Weakness: He easily gets carsick.
  • Weirdness Magnet: Strange things usually happen to him because of Star because she considers it normal but there are times where weird things are encountered on his own such as the invisible goats or how he even met Star in a second and third time in the pilot. It's not just people or creatures from other dimensions he's attracted, Janna also applies to this as she frequently invades his personal space and teases him by stealing his house keys, having all of his personal details and finger prints and finally studies witchcraft and demonology through books which are stored in a secret panel behind his locker.
  • Wholesome Crossdresser: He's put in a dress when sneaking into St. Olga's and pulls it off fairly well. By the end, he even asks to keep the dress, which comes back in "Ms. Heinous". Both times are treated as nothing out of the ordinary, and Marco seems to like wearing the dress. He does not identify as a female, despite enjoying womens clothing, and even laments the loss of his attractive and muscular adult body after he returns from another dimension where he was aged up. And of course, he decides he's finally tired of doing this because it's so uncomfortable.
  • Would Hit a Girl: Marco will hurt a woman if it means protecting himself or his loved ones.
    • After failing to get through to Princess Smooshy via psychology, Marco simply throws a book at her.
    • He attacks Miss Heinous when he believes that she and her henchman are about to hurt his parents.
    • Frustrated with Higgs harassing him during their competition, Marco trips her feet.
  • Would Hurt a Child: He was absolutely elated to beat Jeremy half-to-death with the help of Monster Arm and only stopped because he didn't want the arm to kill Jeremy and eat his bowels.
  • You Are Better Than You Think You Are:
    • Star says as much to him in "Sleep Spells", where Marco feels worthless and ordinary in comparison to Star, a magic princess from another dimension. She assures him that he really is an awesome guy.
    • Done again this time by Jackie who after listing all of the dorky ways he's messed up already, tells him the fact he never gives up is what she finds most admirable and cool about him.
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