Beware of spoilers!
Voiced by: (Latin America) Emilio Treviño
Voiced by: (Italian) Andrea Rotolo
Voiced by: (Brazilian Portuguese) Charles Emmanuel
Lincoln's best friend and right-hand man, who always helps him out with his current problems.
- Abhorrent Admirer: Clyde starts out as one to Lori, as the latter usually gets uncomfortable when the former obsesses over her, which is first seen in "Get the Message". However, it's eventually revealed that Lori uses Clyde's Precocious Crush on her to to boost her ego.
- Adorably Precocious Child: Clyde has a maturity streak in that he helps his parents pay their taxes, yet has the fun-loving behavior of a typical child his age.
- Adorkable: At times, particularly when he attempts to hit on Lori. Helps that he wears glasses and has freckles.
- Afro Asskicker: Clyde occasionally roleplays as Jack from Ace Savvy.
- Berserk Button: Seeing Lori with Bobby.
- Beware the Nice Ones: Clyde is usually very kind and friendly, but has his triggers and can become quite angry and aggressive if angered enough. He gets quite competitive to a violent extent in "Intern for the Worse" and "Be Stella My Heart", along with Lincoln in both instances and with Rusty, Liam and Zach in the latter case. He also tries to beat up Bobby in "Cheater by the Dozen" when he believes he is cheating on Lori, though this attempt fails badly. Despite his usually passive, geeky personality, Clyde can be quite violent in some cases.
- Black and Nerdy: Clyde, like Lincoln, is shown to be very intelligent and an excellent student, and Clyde even mentions that he actually helps parents do their taxes.
- Black Best Friend: To Lincoln.
- Blind Without 'Em: Clyde's eyesight becomes impaired without his glasses.
- Boisterous Weakling: Clyde loves typical activities for a boy his age, but his various maladies, fears and general weaknesses make it hard for him to keep up with Lincoln and others sometimes. Lincoln is a true friend and frequently prepares for or compensates for Clyde's health-related idiosyncrasies.
- Butt-Monkey: The most frequent victim of slapstick on the show outside of Lincoln himself.
- The Chew Toy: As with Lincoln, Clyde can be a Butt-Monkey and fall victim to slapstick, but it's mostly done for laughs.
- Closer to Earth: Courtesy of being Lincoln's go-to guy for advice.
- Crazy Jealous Guy: Despite Lori's lack of reciprocation for the favor, Clyde is insanely jealous of Bobby for "stealing" his dream girl.
- Distaff Counterpart: A female version of Clyde is very briefly shown in the dimension where the Loud family consists of 10 boys and Linka.
- Emotionally Tongue-Tied: He stammers Lori's name when he sees her.
- Extraverted Nerd: He's very determined to go out with Lori.
- Failure Is the Only Option: His many attempts to win over Lori.
- Foil: Though he and Lincoln do have a lot in common, Clyde's an only child in contrast to Lincoln, who comes from a family of eleven children. In addition to that:
- Lincoln lives in a home with mostly females—not counting any of the Loud family pets, Lincoln's dad is the only other guy in the family. Also, Lincoln and his sisters and both of their parents (who're husband-and-wife) are all white.
- Clyde, who's black, is the son of an interracial same-sex male couple, and the only known females in their household are their pet cats, Cleopawtra and Nepurrtiti.
- Happily Adopted: According to Word of God, he's adopted, as if his parents being the same gender isn't a giveaway.
- Has Two Daddies: Clyde's the son of Howard and Harold McBride, the first married same-sex couple in the history of Nickelodeon.
- Heterosexual Life-Partners: With Lincoln; they are best friends, stemming from both being nerds who have an interest in Ace Savvy, are often the butt of jokes, and have had straight crushes, in addition to turning to one another when the chips are down. Even so, Clyde is more-or-less of the little brother that Lincoln lacks in his life, seeing how the former is more socially awkward and inexperienced than the latter.
- Hidden Depths: As "Overnight Success" shows, he actually has something in common with each of Lincoln's sisters except for Lori. On a more serious note, it turns out that part of the reason he loves spending time at Lincoln's house is that with him being an only child, it can get pretty lonely at his house sometimes.
- Hopeless Suitor: To Lori. She's aware of his crush and she constantly makes it clear that she doesn't feel the same way—not to mention the fact that she's already in a relationship with someone else.
- Hyperventilation Bag: Whenever he freaks out in "Not a Loud", he breathes into a paper bag.
- Jerkass to One: Whilst generally kind and friendly, Clyde holds an immense grudge against Bobby for having the girl of his dreams.
- Kiddie Kid: He has shades of this, as he is a fan of Blarney the Dinosaur, which is clearly meant for a much younger demographic.
- Likes Older Women: Has a crush on both Lori and Ms. DiMartino.
- Mr. Imagination: He quite frequently cosplays Ace Savvy with Lincoln.
- Nerd: He's just as nerdy about comics, etc. as Lincoln.
- Nerd Glasses: Wears glasses and is dorky.
- Nerds Are Innocent: While Clyde is intelligent in the field of academia, he's very hopeless when it comes to his status as an only child with two same-sex parents and his Precocious Crush on the already-taken Lori.
- Nice Guy: While he can act a bit creepy around Lori and he occasionally tries to break her up with Bobby, Clyde is usually a friendly, polite and loyal friend to Lincoln and he gets along well with all of his sisters.
- Nosebleed: Almost every time he's near Lori, he gets a nosebleed.
- Only Sane Man: Occasionally serves as this to Lincoln, pointing out when he's missed something in one of his plans or when he's going too far with something.
- Plot Allergy: He's allergic to bread.
- Precocious Crush: To Lori, who's at least six years older than him.
- Sickly Neurotic Geek: Clyde has asthma and takes an inhaler to counteract his allergies.
- Sitcom Arch-Nemesis: To Bobby. As noted below, Bobby has no issue with his crush on Lori, while Clyde despises him.
- Sixth Ranger: Whenever people think of the show's main characters, they usually only think of Lincoln and his 10 sisters... Word of God has it that Clyde is part of the main cast, and some episodes showcase that by having him visit Lincoln and his 10 sisters, ultimately enjoying their company and feeling like the Louds' 12th child.
- Smart People Wear Glasses: It's debatable how smart he really is, as he's socially awkward with a hopeless sense of naivety, but he's still managed to pay his parents' taxes and in general gets good grades in school.
- Stalker with a Crush: He's quite obsessive towards Lori.
- Throw the Dog a Bone: In "11 Louds A Leapin", he and Lori stand underneath the mistletoe which gives him an opportunity for Lori to kiss him.
- Token Minority: Clyde is the only black main character on the show.
- Twofer Token Minority: Clyde is black and has respiratory issues (at least one episode has an inhaler implying he has full-on asthma). He also has anxiety issues sufficient that he has his therapist on speed dial, making him at least a threefer.
- Under the Mistletoe: In "11 Louds a-Leapin'", he ties mistletoe to his head to get Lori to kiss him.
- Unfazed Everyman: He takes the craziness of Lincoln's house well, taking being slathered with face cream, strapped to a brain wave helmet that gave Lisa control of him, made over by Lola and wrapped up by Lana's snake in rapid succession in stride. However, he and Lincoln seem to have been friends for a long time, so he's probably used to it by now.
- Unknown Rival: Bobby knows Clyde has feelings for Lori and gives him a bro-fist for the "date" they went on. He doesn't realize Clyde is actively trying to woo her and despises him.
- Where Da White Women At?: He is African-American and he has a crush on Lori, who is Caucasian.
- Wingding Eyes: Whenever he thinks about Lori, he gets hearts in his eyes.
- Wise Beyond Their Years: Clyde is a straight-A student who also knows how to pay his parents' taxes.
- Youthful Freckles: His freckles are very noticeable.
A friend of Lincoln. A farm-boy who doesn't mind getting dirty.
- Beware the Nice Ones: A likeable country boy he may be, but he's not one to be crossed.
- Good Ol' Boy: A sweet-natured boy who lives on a farm and speaks with a thick Texas accent.
- Hidden Depths: Despite the country motif he plays up, his favorite music is rock and roll. He's also a member of his school's chess club, which is rather unexpected for a country boy.
- Nice Guy: Out of Lincoln's group of friends, he is probably the nicest.
- Older Than They Look: He's around Lincoln's age, but due to his short height, he looks far younger.
- Only One Name: His last name has yet to be revealed.
- Pint-Sized Kid: Despite being a pre-teen, Liam is around the same size as Lisa, who's 4.
- Raised by Grandparents: Possibly—from what can be gathered from his dialogue, his grandmother (who he refers to as "Mamaw") appears to his and his sister's primary caretaker.
- Recurring Extra: Shows up in several episodes, especially in the Sisters-less, Lincoln-focused episodes alongside Rusty and Zach.
- Redhead In Green: Has ginger hair and wears a green striped t-shirt.
- Youthful Freckles: A preteen boy who has freckles.
A friend of Lincoln. A Casanova Wannabe who tries too hard to be cool in front of the ladies.
- Afraid of Blood: Faints very easily at the sight of blood, or as the case has been so far, sufficiently realistic-looking fake blood.
- Amazon Chaser: He likes Polly Pain's rough way of dating.
- Ascended Extra: In season 2, to some extent. While he already had a minor role in "Save the Date" alongside Liam and Zach, he shows up without them several times in season 2 when the show needs an other friend than Clyde for Lincoln to interact with. He even has a Day in the Limelight during "Back In Black" (not to the extent of Lucy and Rocky though).
- Beware the Silly Ones: Don't get between him and maintaining his family's high score on Marshmallow Martian Blasters, even if you're a friend. He's dead serious, and not above using dirty tactics if it means eliminating the competition.
- Casanova Wannabe: He tries several times to flirt with girls, for instance with all the Loud sisters (sans Lori, Lucy and Lily) in "Back In Black". It never works (with the exception of Polly Pain).
- Characterization Marches On: In his first appearance, he's part of a bike gang and shuns Lincoln with the other members at the end of the episode. However, his later appearances feature him as one of Lincoln's friends without the other biker kids.
- Extraverted Nerd: Despite being kind of a dweeb, he still sees himself as a ladies' man.
- Jerk with a Heart of Gold: He started out as Lincoln's bully and he can be pretty egotistical and rude at times, but he is still Lincoln's friend.
- Only Known by Their Nickname: His real name is unknown.
- Punny Name: He's a cycling enthusiast named Rusty Spokes. Though, it might not be his real name.
- Recurring Extra: Shows up in several episodes, especially in the sisters-less, Lincoln-focused episodes alongside Liam and Zach.
- Redhead In Green: Has ginger hair and wears a bright green t-shirt.
A friend of Lincoln. A nerdy kid who isn't very social. Has a love for all things sci-fi, especially aliens.
- Butt-Monkey: He's shown to be more awkward and wimpier than Clyde, Liam and Rusty.
- Character Tics: Has a love for aliens, of which carries into whenever he's the Dungeon Master.
- Conspiracy Theorist: Once believed Lincoln was kidnapped by aliens in "Back Out There", and that Stella was a spy for the CIA in "Be Stella My Heart". His official bio in Family Tree confirms him as one.
- Hidden Depths: Known for living between a highway and the circus.
- Older Than They Look: His short height makes him look like a kid around Lisa's age.
- Pint-Sized Kid: Like Liam, he's noticeably short-heighted despite being in his pre-teens.
- Recurring Extra: Shows up in several episodes, especially in the Sisters-less, Lincoln-focused episodes alongside Liam and Rusty.
- Vitriolic Best Buds: With Rusty. Best explained in his bio from Family Tree.
- Youthful Freckles: He has some freckles on his face.
Royal Woods Elementary School
- Cuteness Proximity: Suffers this, along with the rest of her classmates, upon seeing the picture of the sad polar bear.
- Flat Character: Due to never having a speaking role and few appearances she has not much characterization.
- Hair Decorations: She wears a yellow headband.
- Living Prop: You will often just find her in the background.
- Only One Name: Her surname hasn't been revealed yet.
- Recurring Extra: Usually just a background character.
- The Silent Bob: Never says anything.
- Stunned Silence: Her reaction to Lincoln's video, more specifically when he kisses a picture of her he put over a vampire bust.
- True Blue Femininity: Her dress and shoes are both colored dark blue.
- What Happened to the Mouse?: In "Making the Case", Lincoln mentions that she switched classes and has not been seen since "For Bros about to Rock", leaving the plot thread of Lincoln having a crush on her unresolved. She was likely written out of the series to make way for Ronnie Anne.
Rusty's younger brother, and Lucy's love interest.
- Hidden Depths: He seems like a average, normal kid at first, but he shares Lucy's interest in the macabre.
- Nice Guy: Despite how apathetic he seems to be, he eventually admits that he likes Lucy for who she is and is generally polite when talking to Lincoln.
- Offscreen Teleportation: His ability to do this is another trait he shares with Lucy.
- Only Known by Their Nickname: Like his older brother, he isn't given a real name.
- Redhead In Green: Like his brother, he has ginger hair and he wears a green striped t-shirt similar to Liam's.
- What Happened to the Mouse?: After his debut in "Back in Black", he's never seen again despite being built up as Lucy's potential crush. Later in "L is for Love", Lucy is seen crushing on another boy, Silas, and Rocky is not brought up again.
A classmate of Lincoln's. A fun-loving girl and acquaintance of Lincoln.
- A Day in the Limelight: She gets one in "Pasture Bedtime".
- Ascended Extra: Started off as a background character, but gained more prominence in Season 3.
- Beware the Nice Ones: When it comes to dodgeball. She's been known for throws even after the whistle blows.
- Also, when Andrew gives her a dutch oven (per Lincoln's advice) in "Lincoln Loud: Girl Guru", an angry Girl Jordan responds by giving him what she calls an american wedgie.
- Characterization Marches On: In "The Green House," she, along with her classmates, upbraids Lincoln for his sisters' excessively large carbon footprint, claiming that he "might as well have thrown [his] social life out the window."
- Early Installment Character-Design Difference: Zig-zagged. She was given a new design in "Lincoln Loud: Girl Guru", but occasionally appears with her old look.
- Nice Girl: She's mostly nice to Lincoln and his friends.
- Tuckerization: She is named after the storyboard artist Jordan Rosato.
A new transfer student and Lincoln's classmate.
- Ambiguously Brown: She has a slightly darker skin tone and her eyes aren't fully rounded like most of the cast, making her ethnicity hard to discern. However, she's voiced by an Asian actress.
- Contrasting Replacement Character: To Ronnie Anne, as both were introduced rather similary with them never appearing on-screen in their debut episodes, but she's shown to be a Tomboy with a Girly Streak and a genuine friendly girl unlike Ronnie Anne who's a rough Ladette with a Hidden Heart of Gold.
- The Ghost: Throughout her debut, she is only referred to as "the new girl", and all that's seen of her is the top of her head (due to being obscured by a bus seat). It's only until "Be Stella My Heart" that her face is shown, and her name is revealed.
- Nice Girl: She is quite friendly to Lincoln and his friends, though she does have her standards.
- The Not-Love Interest: While Lincoln had a crush on her in the episode "White Hare", in "Be Stella My Heart", she shows no romantic interest in Lincoln (or any of his friends) and just wanted to be his friend after meeting him on the school bus, by the end of the episode she becomes part of Lincoln's group of friends.
- Tomboy with a Girly Streak: She's implied to be this in the episode "Be Stella My Heart"; while it isn't clearly stated, the fact that she wanted to befriend Lincoln and his friends gives us an idea of her hobbies and preferences. Though with those tomboyish hobbies and preferences also comes a fairly girly demeanor and attire that includes a skirt.
- Youthful Freckles: Like most of the kids in her class, she has freckles.
One of the popular kids at Royal Woods Elementary. His dad works at a sewage plant.
- The Bus Came Back: After only a cameo in Season 2, he finally returns as a major character in "Jeers for Fears".
- Jerkass: What he ultimately is. He takes advantage of Lincoln by asking him for favors that get Lori in trouble. He also has his friends give him their tickets.
- Kick the Dog: He is a jerk to Lincoln and Clyde and at first, didn't want to invite them to his birthday party.
- Pet the Dog: Despite being a blatant Jerkass towards Lincoln and Clyde, you gotta give him credit for keeping his word about sending them invites to his birthday party. Though the moment's ruined thanks to reminding Lincoln and Clyde that he expects them to bring him presents.
- Redhead In Green: He has dark red hair and wears a green shirt.
- Took a Level in Kindness: At the end of "Jeers for Fears", where he learns his lesson in humility.
- Villain of the Week: The main antagonist of "The Waiting Game".
- Youthful Freckles: A preteen boy with freckles.
Royal Woods Kindergarten
A little girl in Lisa's kindergarten class who Lisa befriended to get an A for social skills on her report card. The two later become genuine friends.
- Ambiguously Brown: She has dark skin, but her exact ethnicity is unknown. She also has a white voice actress.
- Break the Cutie: She doesn't take it well when she thinks Lisa doesn't want to be her friend anymore.
- Calling Your Bathroom Breaks: When on the seesaw, she says she needs to tinkle.
- Cheerful Child: Darcy is a typical 4-year-old girl who likes to play and make new friends.
- Children Are Innocent: A sweet little girl with a playful enthusiasm and friendly demeanor.
- The Cutie: An innocent and kind-hearted little girl.
- Foil: She is a foil to Lisa in everything - while Lisa is a Child Prodigy, Darcy is a typical preschooler who doesn't even know how to read yet, and while Lisa is a stoic introvert who isn't very good at socializing, Darcy is a cheerful extrovert who loves making new friends.
- Genki Girl: Darcy is playful and cheerful, just like other kids around her age (except for Lisa).
- Heterosexual Life-Partners: She and Lisa become genuine friends after only having bonded to help the latter get an A on her social skills report card. Lisa's maturity level in fact regresses into that of a socially expected Cheerful Child whenever hanging around Darcy. The two are even shown playing laser tag in "Racing Hearts".
- Nice Girl: Darcy is a kind-hearted girl who quickly befriends Lisa. Even after Lisa hurts her feelings by telling her that she doesn't want to be friends with her anymore, Darcy still sees her as a friend and even gives her a cookie to cheer her up.
- Pink Means Feminine: She wears a shirt with a pink flower on it.
- Tomboy and Girly Girl: The Girly Girl to Lisa's Tomboy. She is very sensitive, likes cute things (evidenced by how she let out a Squee! when she thought Lisa had a cat), wears pink, and has a girly appearance accentuated by a flower on her shirt. Lisa, on the other hand, is stoic, snarky, brutally honest, likes science, and has an unkempt appearance.
- Acting Your Intellectual Age: Being a Child Prodigy, David behaves like an adult and subverts the typical behavior of his childish peers.
- Birds of a Feather: David is a Child Prodigy who loves science, just like Lisa, who has a crush on him.
- Child Prodigy: Like Lisa, he knows how to do chemistry and write.
- Distaff Counterpart: He could be seen as the male version of Lisa in that both are Child Prodigy geniuses who practice chemistry, are Wise Beyond Their Years, and wear Nerd Glasses.
- Lab Coat Of Science And Medicine: He's into science and wears a white lab coat.
- Love Interest: Lisa has a crush on him.
- Nerd Glasses: Like Lisa, he's a brainiac in glasses.
- Pair the Smart Ones: Both he and Lisa are child prodigies and are interested in each other.
- Satellite Love Interest: He basically exists to be Lisa's love interest in "L is for Love".
- Wise Beyond Their Years: Already knows how to do chemistry and write at age four.
- Youthful Freckles: He's four and he has freckles.
Royal Woods Middle School
Lynn's best friend and fellow sports player.
- Always Second Best: Naturally, with Lynn always having to be "number one" in everything, Margo is prone to being number 2 or 3 in any sports team she's in.
- Always Someone Better: Eventually she's able to do something impressive enough to eclipse Lynn's popularity during a soccer game in "Hero Today, Gone Tomorrow".
- Ascended Extra: After having multiple (mostly voiceless) cameos in seasons 2 and 3, she finally has A Day in the Limelight in "Hero Today, Gone Tomorrow".
- Heterosexual Life-Partners: She's the closest friend Lynn has been shown to have in the series.
- Lady Looks Like a Dude: Give her shorter hair and remove her eyelashes, and she could easily pass for a boy.
- Passionate Sports Girl: Quite possibly on the same level as Lynn, or at least close. She's been shown to play softball and soccer with gusto.
- Red Oni, Blue Oni: The Blue to Lynn's Red. While both are energetic and competitive Passionate Sports Girls, Margo is a little less egotistical and boastful than Lynn and a little more graceful and modest when it comes to taking credit for her accomplishments. She's also a little more soft-spoken than Lynn, at least relatively speaking.
- Rude Hero, Nice Sidekick: To an extent. Lynn's rough and aggressive personality can make her come across as a bit of a Jerk with a Heart of Gold on her worst days, while Margo hasn't shown any especially rough or malicious behaviour as of season 3. Margo also dislikes how Lynn doesn't let her go "number 2" before a big game.
- Tomboy: Shares Lynn's passion for sports and some of her gross habits.
- Tomboyish Ponytail: She gets one of these in "Hero Today, Gone Tomorrow".
- Tomboy with a Girly Streak: Being Lynn's friend, it's only natural she's a pretty big tomboy, with a passion for sports, a competitive drive of her own (albeit far less extreme than Lynn's) and even a few gross habits. But girly traits are present if subtle. Her casual outfit shows her wearing the same slip on shoes that girly characters like Lori wear. She also trades the Tomboyish Ponytail for long hair when not playing sports. She also lets out an audible "awww" when a fan of hers shows her a cute jersey saying Margo's name on it. In general, she also comes across as a little less rough, aggressive and boastful than Lynn.
Royal Woods High School
A music-loving girl currently dating Luna.
- Adorkable: Much like her girlfriend Luna she has pretty quirky fun-loving side to her. It's best show with this clip.
- Alliterative Name: Sam Sharp.
- Annoying Younger Sibling: Her official bio reveals that she has a brother named Simon, and according to her, having one sibling is chaos enough. As to whether Simon is older or younger than Sam is yet to be confirmed.
- Ascended Extra: After just appearing as a background character, Sam finally got to have a plot with Luna in the episode "Racing Hearts".
- Birds of a Feather:
- She loves playing guitar, just like Luna.
- "Racing Hearts" subverts this by showing that Luna and Sam have many different interests.
- Gender-Blender Name: Sam can be either a male or female name. In this case, it's a female name. In fact, this was one of the hints to The Reveal at the end of "L is for Love" that she was actually a girl.
- Hair of Gold, Heart of Gold: She has blonde hair and is quite friendly.
- Hidden Depths: In "Racing Hearts", it is revealed that she has some Granola Girl traits. As she likes organic smoothies, chickens, and is an expert at outdoorsy activities such as rock-climbing and sailing.
- High-School Sweethearts: She and Luna are both high school students and officially dating.
- Nice Girl: Sam is good friends with Luna as they play music together. In the comic strips "Sam's Pick" and "Midnight Melody", she seems to be well respected by the other siblings and she isn't quick to judge Luna, even sternly, for "acting nuts" or calling her in the night.
- Official Couple: Although they initially regress to an insecure state after realizing how little they have in common, Sam and Luna eventually agree to nurture their relationship to further extents and thus start officially dating.
- Older Than They Look: She's 15, but you wouldn't be able to tell judging by her flat chest.
- Outdoorsy Gal: If "Racing Hearts" is any indication, she enjoys outdoor activities like farming, rock-climbing and sailing, in contrast to Luna, who prefers more indoor activities like dancing and laser tag.
- Rip Tailoring: Sam has a notable tear in her jeans that expose some of her legs.
- The Rock Star: She plays guitar, just like Luna.
- Skunk Stripe: The front part of her hair is dyed blue.
- She's a Man in Japan: She's a male in the Korean dub, probably because homosexuality isn't as accepted in Korea.
- Straight Gay: Sam is currently dating Luna, but lacks any stereotypical traits often found with lesbians in media.
- Sucks at Dancing: Dancing is not one of her things, even at concerts.
- Tomboy: Sam practices rock music.
- True Blue Femininity: Sam wears a blue coat and has a blue Skunk Stripe in her blonde hair.
- Walking Spoiler: The fact that she is a girl isn't revealed until the end. It's a pretty big deal because it confirms that Luna is bisexual.
One of Lori's schoolmates and her one-sided rival.
- Ascended Extra: She has a speaking role in "Selfie Improvement", where she is also the main drive of the plot.
- Broken Ace: Despite besting Lori at almost everything, she is quite insecure. She actually thinks that Lori is better than her and envies her status as an elder sibling.
- Competition Freak: Her initial shtick towards Lori in terms of selfies.
- A Day in the Limelight: "Selfie Improvement" was her closest thing to a limelight episode, in which she was given more character development beyond being one-off mention.
- Evil Counterpart: "Evil" is a bit too cynical, but she starts off as a competitive Alpha Bitch in Lori's eyes, ultimately painting her as the latter's condescending counterpart.
- Graceful Ladies Like Purple: Her outfit is mostly purple, with the sole exception of her first appearance where it was blue like Lori's outfit.
- Heterosexual Life-Partners: She has quite a long dynamic with Lori, as the latter had been rivaling her since kindergarten and constantly relied on Leni to comfort her, but when they finally talked to each other as current high school seniors, it's revealed that Carol is Not So Above It All as she herself is quite insecure and envies Lori's status as an older sibling.
- Lovable Alpha Bitch: Popular, talented, pretty, competitive...and surprisingly nice.
- Made Out To Be A Jerk Ass: Lori initially paints Carol out to be an insufferable Alpha Bitch who strives to steal her thunder, though it's subverted when it's revealed that Carol is Not So Different from Lori and in fact possesses similarly leveled insecurities about Lori's accomplishments.
- Nice Girl: While competitive, when Lori finally talks to her, she turns out to be a friendly, humble person who quickly befriends Lori.
- Sitcom Archnemesis: She's been Lori's rival since kindergarten, as she has always bested her at everything, yet she doesn't seem to see Lori as a rival.
A boy who Leni is dating and one of Lori's friends. He is shown to be a fashion designer.
- Birds of a Feather: What draws him and Leni together is the fact that both have an interest in fashion.
- Camp Straight: He likes fashion, which is typically considered to be feminine. That said, he definitely like girls, especially Leni.
- Distaff Counterpart: Essentially a male version of Leni as both of them are fashion-obsessed dim-but-nice people.
- The Ditz: Like Leni, he doesn't seem very bright, seeing as how he refers to himself in third person.
- Fanboy: He's revealed to be an ongoing fan of Ace Savvy, showing that people can still enjoy shows and characters even past their childhood years.
- The Fashionista: Is interested in fashion like Leni.
- Fat Idiot: He's notably obese and not exactly the sharpest tool in the shed.
- In Touch with His Feminine Side: Chaz is a fashion designer.
- Kindhearted Simpleton: A dimwitted but kind boy.
- Never Bareheaded: Has yet to be seen without his hat so far.
- Nice Guy: He's shown to be pretty outgoing and sociable.
- Nice Hat: He wears a backwards blue baseball cap.
- Odd Couple: You'd think that a geeky fat boy is the last guy fashion-obsessed Leni would go for. Not surprising, considering both of them like fashion.
- Official Couple: As of "Really Loud Music", he is dating Leni, as shown in Leni and Lori's duet.
- Older Than They Look: He's somewhere around 16, but could easily be mistaken for a kid around Lincoln's age given his short height and Youthful Freckles.
- Only One Name: His last name has never been revealed.
- Pair the Dumb Ones: With Leni. While not as dumb as her, he is still not the sharpest tool in the shed.
- Teens Are Short: Is around the same height as Lynn and Luan, albeit more overweight.
- Third-Person Person: He occasionally refers to himself in third person, i.e. saying "Chaz like!" whenever he sees something he likes.
- Youthful Freckles: He has freckles.
One of Lori and Leni's high school friends.
- Bad Liar: When trying to get out of Lori's sophisticated party in "Party Down".
- Boyish Short Hair: Subverted; her hair doesn't reach her shoulders, but she doesn't seem to have any tomboyish traits (aside from being an Ace Savvy fan).
- Hidden Depths: Revealed to be an Ace Savvy fan in "Deal Me Out".
- Otaku Surrogate: She's a fan of the In-Universe superhero Ace Savvy.
- Recurring Extra: Whenever Lori and Leni are hanging out with friends from high school, chances are Becky's one of them.
A boy who Luan has a crush on. Like Luan, Benny is interested in comedy.
- Adorkable: He comes off as this due to his social awkwardness and emotional sensitivity.
- Ascended Extra: His appearance in "L is for Love" was little more than a cameo. "Stage Plight" gives him a major role.
- The Bus Came Back: Has a major role with Luan in "Stage Plight".
- The Big Damn Kiss: He shares one with Luan as part of the Romeo and Juliet play recital, having shared his first one with her.
- Birds of a Feather: Luan and Benny have crushes on each other due to the fact that both of them love comedy and subvert their respective gender/age roles.
- Camp Straight: Benny has artistic leanings, but definitely seems to return Luan's feelings.
- Companion Cube: Like Luan, he has his own puppet.
- Crush Blush: He blushes at Luan during the school play when she places a whoopee cushion on his seat.
- Early Installment Character-Design Difference: He had a different hairstyle in "L is for Love", compared to his hairstyle in "Stage Plight".
- Fun Personified: Like Luan, Benny has a fondness for comedy.
- Identical Stranger: He looks similar to Joey, one of Lori's friends, except Benny has darker brown hair and no freckles.
- In Touch with His Feminine Side: Benny has a passion for theater, which is stereotypically a feminine interest. That said, he definitely likes Luan back.
- Love Interest: Luan has a crush on him.
- Masculine Girl, Feminine Boy: The Feminine Boy to Luan's Masculine Girl. Benny's emotional sensitivity and theater love are stereotypically feminine, while Luan's prankster habits and comedy passion aren't.
- Older Than They Look: Benny is around 14, but he could very well be around Lincoln's age based on his appearance.
- Only One Name: His last name is never revealed.
- Pink Girl, Blue Boy: The Blue Boy to Luan's Pink Girl. Benny wears a sky blue jacket, while Luan wears a pink flower on her shirt and shoes.
- Puppy Love: He and Luan engage in innocent malice-free romance as part of the play.
- Vocal Evolution: Since he has a new voice actor in "Stage Plight", his voice slightly differs from how it sounded when he screamed in "L is for Love".
They each share tropes similar to the sister who fixed them up with Lincoln, and are essentially discount, overly-exaggerated versions of them. Polly is an aggressive sport girl who enjoys causing pain to others. Haiku is a Japanese Goth girl poet. Tabby is a British rocker. Giggles is an actual clown.
Tropes applying to all of them
- Ascended Extra: Of the four, only Haiku has had further speaking appearances. Giggles briefly makes a non-speaking cameo in "Friendzy", while Tabby and Polly Pain were effectively replaced by Sam and Margo, respectively.
- Birds of a Feather: After the truth about Lincoln comes out to the girls, they all dance with boys who share interests with them: Polly with Rusty Spokes, Tabby with Liam, Giggles with Zach, and Haiku with Clyde.
- Establishing Character Moment: In order:
- Tabby immediately asks Lincoln if he wants to jam with her after meeting him, then compliments him after he plays an air piano.
- Giggles greets Lincoln, does the "joy buzzer" prank then jokes that she's heard a lot of "buzz" about him.
- Haiku tells Lincoln a poem that is on par with Lucy's, then compliments him after he tells her the story of Jack and Jill in poem form, all in an emotionless tone.
- Polly quite literally crashes into him, then is impressed when he doesn't barf after she spins him.
- Flanderization: Each of them has the traits of the Loud girls whom they are friends with turned Up to Eleven:
- Tabby has a British accent and dresses more like a rocker than Luna.
- Giggles is literally a clown.
- Polly Pain rolls around on roller skates and constantly getting overly-physical.
- Haiku in a subversion, as she is really no different from Lucy.
- Four-Girl Ensemble: Polly is the tomboy, Giggles is the naive girl, Haiku is the pretty one and Tabby is the other one.
- Hair Decorations: Giggles wears a yellow hat, while Polly wears a pink helmet.
- Light Feminine and Dark Feminine: Giggles and Haiku, respectively.
- Only One Name: Except Polly.
- Red Oni, Blue Oni: Tabby, Polly and Giggles are red, Haiku is blue.
- Tertiary Sexual Characteristics: They all have eyelashes.
- Tomboy and Girly Girl: Haiku is a girly girl, Polly Pain is a tomboy, while Tabby and Giggles are in the middle.
Tropes applying to Tabby
- Anime Hair: Spiky, with a large tuft of it pointing upwards.
- Childish Tooth Gap: Has a gaping hole in her teeth.
- Nice Girl: Is the only girl that seems legitimately upset at having to date Liam instead of Lincoln, at least at first.
- Skunk Stripe: She has a purple streak which goes upwards. Her hair also looks similar to a skunk.
- Up to Eleven: Literally does this with Liam during the dance.
- V-Sign: Likes throwing these around. She is a rock fan, after all.
Tropes applying to Giggles
- Big Beautiful Woman: She's rather chubby.
- Cartoon Juggling: Juggles muffins during her date with Lincoln.
- Gag Nose: A red clown nose.
- The Hyena: She's nowhere near as bad as Luan, but she laughs a lot.
- Meaningful Name: Giggles is a clown, and she also has a tendency to laugh.
- Non-Ironic Clown: Dresses like a clown, but is in no way mean-spirited.
- Western Zodiac: She's a Virgo.
Tropes applying to Haiku
- Boy Meets Ghoul: Apparently has a crush on a vampire.
- The Bus Came Back: The first of the four dates to reappear after "Dance, Dance Resolution" in "Out of the Picture" as part of the Mortician's Club with Lucy. In "The Write Stuff", she appears as part of the poetry club.
- Eerie Pale-Skinned Brunette: She's a brunette with pale skin.
- Emotionless Girl: Shows little to no emotion.
- Goth: Definitely on par with Lucy.
- Graceful Ladies Like Purple: Her outfit is mostly purple, though it's debatable how graceful she is given her rough nature.
- Just Friends: Unlike the other girls, who could potentially be interested in the boys they dance with, she's strictly friends with Clyde due to sharing the pain of unrequited love.
- Meaningful Name: Haiku is a type of poetry, and lo and behold, the character Haiku is a poet.
- Peek-a-Bangs: Her hair covers one eye.
- Unrequited Love Lasts Forever: Apparently has a crush on a "vampire" who's 200 years old. Part of the reason she and Clyde become friends is that they end up bonding over how they both have feelings for people who're considerably older than them.
- When She Smiles: She smiles while hanging out with Clyde.
Tropes applying to Polly Pain
- Alliterative Name: Polly Pain.
- Ass Kicks You: Slams Lincoln with her booty, a move she likes to call "booty block".
- The Big Guy: The tallest of the girls, and also the one who gets the most physical with Lincoln.
- The Bus Came Back: The second of Lincoln's dates to reappear after Haiku; she appears (or at least a girl who looks like her) in "Spell It Out" as part of Lynn's rowboat team, though she doesn't speak.
- Girlish Pigtails: Inverted, she wears her hair in pigtails but is a tomboy.
- Everything's Better with Spinning: Her "Helicopter" move, which simply involves spinning her partner around. She does this to Lincoln, and then Rusty Spokes.
- Noodle Incident: Has apparently tried her "helicopter" move, where she spins around someone, on people before Lincoln, who is the first to not puke in the process.
- Passionate Sports Girl: What else did you expect from a friend of Lynn? Though in her case, it's not known if she likes anything other than roller derby.
- Rollerblade Good: Wears a pair of rollerskates, and is part of Lynn's roller derby team.
- Who Wears Short Shorts?: Jean shorts, to be exact.
- Papa Wheelie voiced by: Mason Vaughan
Flat Tire voiced by: Blake Bertrand
- Blinding Bangs: Flat Tire's hair covers his eyes.
- Big, Thin, Short Trio: Papa Wheelie (big), Rusty Spokes (thin), and Flat Tire (short).
- Demoted to Extra: This happens to Flat Tire and Papa Wheelie after "Lincoln Loud: Girl Guru." While Rusty managed to nab a good number of appearances after that episode and received more speaking roles, Flat Tire and Papa Wheelie have been reduced to voiceless cameos.
- Only Known by Their Nickname: Their real names are unknown.
A duo of bullies.
- Afraid of Blood: Hank and Hawk get nauseous when seeing Clydes nosebleed. This is later turned against them in Lucy's corn maze, where she pours a bucket of fake blood on them.
- Ambiguously Brown: Hank has darker skin, but he isn't black like Clyde.
- Ascended Extra: They play a minor role during their first appearance in "The Loudest Yard", and later become the main antagonists of "Tricked!"
- Barbaric Bully: Hank and Hawk are the "big, muscular, not very bright" type of bullies.
- Blinding Bangs: Hank has these.
- The Bully: Obviously.
- Even Evil Has Loved Ones: They're not evil per se, so it's more like Even Jerks Have Loved Ones. However, they seem to be best friends. Their bromance is so strong, they do everything together. Even if it includes barfing and passing out.
- Fat Bastard: Both of them are very overweight and they are bullies.
- Jerkass: Both of them. Logical, since they are bullies.
- Jerk Jock: Both of them. They're shown to be into football when they first appear in "The Loudest Yard" and they're certainly jerks.
- Karma Houdini: Played straight in their first appearance, where they antagonise Lincoln and Lynn in "The Loudest Yard", but successfully defeat the Turkey Jerkies and never receive comeuppance for acting like arrogant, condescending jerks. Not so much in "Tricked!" where they finally receive their comeuppance, courtesy of the Loud family.
- Sweet Tooth: They both love candy, to the point they eat it even when they are full.
- Those Two Bad Guys: They are never seen apart from each other and have pretty much identical personalities.
Tropes applying to all of them
- Cool Bike: Casey owns a green bike.
- Cool Board: Sameer and Nikki get around on skateboards.
- Multinational Team: They're a fairly diverse group with Ronnie Anne who's Mexican, Casey who's African American, Sameer who is implied to be Middle Eastern, and Nikki who's Caucasian.
- Nice Guy: They are friendly to both Ronnie Anne and Lincoln, even after finding out the former isn't from the city as she lied to them about.
- Only One Name: They don't have last names.
Tropes applying to Casey
- Black Best Friend: He's African American and a close friend of Ronnie Anne's crew.
- Cool Hat: He wears a checkered cap backwards.
- Youthful Freckles: He has some freckles on his cheeks.
Tropes applying to Sameer
- Ambiguously Brown: His dark skin, fluffy hair and name suggest that he's Arabic or Middle Eastern.
- Big Ol' Eyebrows: His eyebrows are thick.
- Hidden Depths: Comes from Kansas.
- Tiny Guy, Huge Girl: The Tiny Guy to Nikki's Huge Girl.
Tropes applying to Nikki
- Peek-a-Bangs: Her hair covers one eye.
- In the Hood: Like Ronnie Anne, she wears a hoodie.
- Nice Girl: Like the others, she's very nice to Lincoln and Ronnie Anne in City Slickers.
- Tiny Guy, Huge Girl: The tallest member of the group, standing over at least one head.
- Tomboy: Just like Ronnie Anne.
- Tomboy with a Girly Streak: Despite a mostly unfeminine appearance, she does have pink shoes.
- Chinah voiced by: Maddie Taylor
Jackie voiced by: Jessica DiCicco
Claudette voiced by: Jill Talley
A trio of girls who love beauty pageants.
- Ambiguously Brown: Jackie has brown skin, but her ethnicity is unknown.
- Color-Coded Characters: Claudette wears blue, Jackie wears yellow, and Chinah wears green.
- Pet the Dog: Jackie takes the time to congratulate Lola.
- Redhead In Green: Chinah is a redhead who wears green.
- True Blue Femininity: Claudette wears a blue outfit.
- Youthful Freckles: Chinah has these.
- Evil Counterpart: Perhaps "evil" is a bit of a stretch, but he's notably a jerkass who looks similar to Lincoln.
- Identical Stranger: He notably resembles Lincoln, despite the two having had little interaction.
- Jerkass: Laughs at Lincoln's expense, and later swipes the last box of Zombie Bran that Lincoln worked hard to get.
- Laser-Guided Karma: Gets one when he's taken out of the store by his mom after the havoc he wreaked while fighting with Lincoln.
- Nice Hat: Wears a white beanie, of which covers his blonde hair, making him look even more like Lincoln.
- No Name Given: His real name is never revealed.
- One-Shot Character: Has only appeared in "Cereal Offender".
A typical emo girl. She celebrated her 13th birthday in the episode "Funny Business".
- Emo Teen: A typical stoic, depressed emo girl. Her appearance is a giveaway.
- Emotionless Girl: Courtesy of being emo, Maggie displays little emotion (sans smiling at Lincoln and Luan's mime act).
- Foil: To Luan. While both of them like pantomime and wear skirts, they are complete polar opposites. Luan is upbeat, cheerful, optimistic, and comedy-loving, while Maggie is emo, stoic, depressed, and hates having fun.
- Non-Standard Character Design: Going by the seeming animation technique that no female under 16 has breasts on this show, 13-year-old Maggie is the only known exception to this rule.
- No Sense of Humor: Maggie absolutely hates comedy.
- One-Shot Character: Only appears in "Funny Business".
- Perpetual Frowner: Due to being an emo girl, a frown is her default expression.
- Red Oni, Blue Oni: The near stoic, gloomy emo (blue) to Luan's cheerful, energetic and boisterous comedian (red).
- When He Smiles: Despite being emo, she manages to smile when Luan and Lincoln perform a mime act as entertainment act for her birthday party.
- You Gotta Have Blue Hair: Inverted. She wanted to dye her hair purple at one point, but her mom wouldn't let her.
- Youthful Freckles: She has freckles.
- Birds of a Feather: She loves video games, just like Lincoln.
- Gamer Chick: A big part of Lincoln's attraction to her seems to be she likes video games just like him.
- One-Shot Character: So far, she's only appeared in "L is for Love".
- Satellite Love Interest: Basically exists to be Lincoln's love interest in "L is for Love".
- Ambiguously Brown: He has brown skin, but his ethnicity is unknown.
- Big Ol' Eyebrows: He has incredibly bushy eyebrows.
- Birds of a Feather: He loves sports, just like Lynn.
- Nice Hat: Wears a baseball cap.
- Satellite Love Interest: Basically exists to be Lynn's love interest in "L is for Love".
- Spit Shake: Does one with Lynn in "L is for Love".
A boy Lucy has a crush on in "L is for Love".
- Birds of a Feather: He is a gloomy goth, just like Lucy.
- Dub Name Change: His name is Samuel in the Polish dub.
- Exhausted Eye Bags: He has some bags under his eyes.
- Goth: He appears to be a goth like Lucy.
- Raven Hair, Ivory Skin: Silas has pale skin and black hair, making him a rare male example of the trope.
- Satellite Love Interest: Basically exists to be Lucy's love interest in "L is for Love".
A boy Lana has a crush on in "L is for Love".
- Birds of a Feather: He enjoys fixing things, just like Lana.
- Distaff Counterpart: Basically a male version of Lana in that both are professional mechanics who wear backwards baseball caps.
- Mr Fix It: Like Lana, he enjoys fixing bikes.
- Nice Hat: Wears a backwards green baseball cap.
- One-Shot Character: Only appeared in "L is for Love".
- Puppy Love: Implied when he smiles upon receiving Lana's love note.
- Satellite Love Interest: Basically exists to be Lana's love interest in "L is for Love".
- Youthful Freckles: He's a little boy and he has freckles.
Lola's crush from "L is for Love". He is a posh boy.
- Birds of a Feather: He is interested in beauty pageants, just like Lola.
- Hold Up Your Score: Lola remembers Winston holding up a "10" card during one of her pageants. She later tries to impress him by holding up a "10" after he falls on his face while doing down a slide.
- Improbable Age: Despite him being a little kid, he's a member of the jury during one of Lola's pageants.
- In Touch with His Feminine Side: Despite being a boy, he is interested in beauty pageants and judging by how he looks like, he seems to care for his own appearance as well.
- One-Shot Character: He only appears in "L is for Love".
- Real Men Wear Pink: Winston wears a pink scarf.
- Satellite Love Interest: Basically exists to be Lola's love interest in "L is for Love".
A family of four boys and one girl.
- Ascended Extra: One of the quintuplets, Pam, made a small appearance in "Breaking Dad". She and her brothers make a return in "Sitting Bull", where they're given a much bigger role and characterization.
- The Dreaded: Viewed as such by Lori, Leni, Luna and Luan, and for good reason.
- No Name Given: The girl's name is Pam, and one of the boys is named Stevie, but that's all that's given.
- One of the Boys: Pam is shown to like all the same stuff as her brothers and enjoys playing with them.
Lola's biggest pageant rival.
A friend of Leni Loud's from Reininger's.
- Foil: While she and Leni are friends, Fiona is more confrontational and easily angered while Leni is a kind-hearted All-Loving Hero.
- Girly Girl: She's a lot like Leni, being into fashion and clothes and other typically girly pursuits.
- Hair-Trigger Temper: Like Lori, Fiona is rather irritable and is easily angered by Lincoln and Clyde's antics in Crimes of Fashion, and was quick to make rivals with Jackie and Mandee in Everybody Loves Leni.
- The Fashionista: Shares this interest with Leni, and works at a clothes store.
- Tomboyish Ponytail: Inverted. She has a ponytail just like Lynn, Ronnie Anne and Luan, but she's probably more girly than Lori.
- Alliterative Name: The Casagrandes first and last names both start with C.
- The Cameo: Despite having been Put on a Bus, they make a brief cameo watching the pop music performance in "Really Loud Music".
- Identical Stranger: All of them have something in common with the Loud sisters in one way or another:
- Ronnie Anne can easily be compared to Lynn. They are both tomboys and bullies who have kind hearts underneath their abrasive behavior.
- Bobby can easily be inferred as a Distaff Counterpart to Leni — Both are incredibly ditzy yet kind-hearted and are respectively dating their seeming to be polar opposites.
- Carlotta can also be seen as being similar to Leni — Both are fashionista teenage girls who are genuinely kind.
- CJ could be seen as one to Luan — Both are prepubescent teenagers who behave younger than their age and are always off in their own little funhouse.
- Carl can be seen as one to Lola in both being mischievous six-year-olds who are missing their front teeth and have a good heart underneath their flaws.
- Lastly, Carlitos is literally The Baby of the Bunch of the bunch like Lily and even has a similar character model to her.
- Put on a Bus: They moved away from Royal Woods in order for Real Life production on the spin-off series Los Casagrandes to proceed.
Voiced by: (Latin America) Víctor Ugarte
Voiced by: (Italian) Alessandro Germano
Lori's dense-but-smooth boyfriend and a man of many jobs.
- Adorkable: His silliness makes him come off as this.
- Affectionate Nickname: "Bobby Boo Boo Bear" from his girlfriend, Lori.
- Big Brother Instinct: Ronnie Anne is his younger sister, and Bobby seems to be rather protective of her, even going so far as to break up with Lori after learning Lincoln made his sister cry.
- Brainless Beauty: He's basically like a male version of Leni Loud. Could even potentially rival Leni.
- Butt-Monkey: A running gag is him not being able to hold down a job for more than an episode.
- Cloudcuckoolander: Bobby is somewhat dense.
- Comically Cross-Eyed: The picture above depicts him as cross-eyed to showcase his dimwittedness.
- Cool Loser: Can't hold a job for more than an episode (if even) and is a textbook Brainless Beauty, but also a loyal boyfriend and bonafide Nice Guy who gets along with the Louds and even fits the role of Lincoln's surrogate "big bro" like a glove? Bobby qualifies.
- Didn't Think This Through: He decides to give himself as a Christmas present to Lori. However, he forgets that she's not supposed to open presents until Christmas morning. To his credit, Lori typically doesn't wait that long.
- Distaff Counterpart: Good-looking but unintelligent? Lori must be dating the male version of Leni.
- The Ditz: He's not very bright as he tried to talk with a chicken and didn't recognise Lily disguised as Lori, even though Lori herself was there dressed as Lincoln. For reference, Lily is a 1-year-old baby. How he could confuse a 1-year-old with a 17-year-old just because of a wig...
- Exhausted Eye Bags: He sports these just like Lincoln does.
- Extreme Doormat: Bobby is completely fine with Clyde crushing on his girlfriend.
- Genius Ditz: He's dense and not very bright... Except when it comes to manage his family's bodega, as he's shown to be excellent at it, especially when it comes to tactical sales.
- The Ghost: He was this for the first few episodes
- Hidden Depths: We find out in "A Fair to Remember" that he's always longed for a younger brother to play "big bro" to, and he feels Lincoln fits the bill perfectly. Also, in "Relative Chaos," Bobby's shown to have some business savviness from working so many part-time jobs.
- Honor Before Reason: Breaks up with Lori when Lincoln hurts his sister's feelings despite Lori having nothing to do with it. Deconstructed when it becomes clear he didn't want to when he has to do it again later in the episode and is overjoyed when Lincoln makes up with Ronnie Ann so he and Lori can get back together.
- Horrible Judge of Character: He views Clyde's intentions innocently when it's obvious that he's trying to steal Lori from him.
- Ink-Suit Actor: He does look a lot like his voice actor dead-on.
- Kindhearted Simpleton: He is very nice and simple minded.
- New Job as the Plot Demands: According to his bio on Nickelodeon's website, his jobs include pizza boy, pool lifeguard, and mall security guard. "Shell Shocked" reveals he owns a bunch of uniforms and goes from one job after another.
- Nice Guy: He's rather friendly with all the Louds. He's also entirely cool with Clyde's crush on Lori despite Clyde repeatedly trying to break the two up.
- Odd Couple: Who would've expected Lori of all people to be interested in a complete dimwit?
- Official Couple: With Lori; they're officially dating.
- Only Known by Their Nickname: He's only ever addressed as "Bobby". No one calls him by his real name, "Roberto".
- Opposites Attract: He's passive, charming, and dense whereas Lori is bossy, condescending but insightful.
- Overly Long Name: His full name is revealed to be "Roberto Alejandro Martinez-Millan Luis Santiago, Jr." in "Study Muffin."
- The Pollyanna: Quite optimistic.
- Running Gag: Being fired from each of his new jobs per episode.
- Satellite Character: Bobby doesn't really add much to the show beyond being Lori's boyfriend.
- Unwitting Instigator of Doom: His arrival at the Loud House after Lori stops calling him in "Undie Pressure" leads to Lori, Lana, Luan and Lisa getting eliminated from the competition.
Voiced by: (Latin American) Betzabé Jara
Voiced by: (Italian) Tiziana Martello
A girl in Lincoln's class who bullies him sometimes. She's also Bobby Santiago's younger sister.
- Affectionate Nickname: "Niní" from her brother Bobby.
- Beef Bandage: She threw one to Lincoln after giving him a black eye in "Heavy Meddle". She also threw one to him at the end of "Save the Date" with a note attached explaining that she slapped him so that his friends would stop thinking that she was his girlfriend and so would stop teasing him.
- Birds of a Feather: In "Dance Dance Resolution", Lincoln decides that he would rather go to the arcade than attend the Sadie Hawkins dance. Much to his pleasant surprise, he finds that Ronnie wanted to do the same thing—and after learning that he was purposely avoiding her, she admits that she probably would've done the same thing if he were trying to ask her to the dance.
- Breaking the Fourth Wall: At the end of "The Loudest Mission", Lincoln teaches her how to Break The Fourth Wall.
- The Bully: She picks on Lincoln relentlessly, and, according to Lincoln, is the toughest girl in school. This is downplayed heavily after her initial episode, though, with any bully behavior being either just for show or more akin to light-hearted teasing.
- Color Motifs: Purple — Except for her pants, her clothing has varying shades of purple and she even has purple highlights in her hair.
- Cry Cute: She can be quite sensitive to Lincoln's opinions, much to his surprise. She cried after hearing Lincoln call her "rude, and gross and totally annoying" and say that he would rather lick the bathroom floor than kiss her.
- Deadpan Snarker: If there is snarking to be done, she will do it.
- Did You Think I Can't Feel?: Despite being a grouchy tomboy and known as the toughest girl in school, she's so sensitive about Lincoln's opinion of her that he's able to hurt her feelings quite easily.
- Double Standard: Abuse, Female on Male: When the Loud sisters find out their brother is being bullied, they go berserk and ready themselves for retaliation... until they find out that his abuser is a girl, in which case they begin gushing.
- Foil: To Bobby in terms of how they treat their lovers, as she treats hers roughly.
- Full-Name Basis: She's almost exclusively referred to as "Ronnie Anne" by others (the only exception is in the song Lincoln's classmates tease him with).
- The Ghost: She wasn't seen at all in "Heavy Meddle". This is subverted in "Save the Date", Lori forces Lincoln go on a double date with her, Bobby and Ronnie Anne.
- Give Geeks a Chance: She's dating Lincoln, who's a massive comic book, sci-fi\fantasy, and video game geek.
- Good Is Not Nice: She does like Lincoln, but her way of showing her affection is very rough.
- Grumpy Bear: Ronnie Anne is very cranky.
- Hair Decorations: Wears her ponytail with a pink hair tie.
- Hidden Depths: In "Shell Shocked", Ronnie's at home behavior is the exact opposite of her at school behavior, with her being shown to frequently cook for her single mother, be openly (if affectionately exasperatedly) supportive of Bobby and generally demonstrate a knack for domestic chores.
- Hidden Heart of Gold: Underneath her rough and tumble exterior, Ronnie Anne is a devoted girlfriend who, in her own way, isn't shy about admitting to Lincoln that she adores him, even "breaking up" with him despite wanting to continue their relationship because of all the teasing Lincoln was getting about their dating.
- Ink-Suit Actor: She's basically a younger version of her voice actress in appearance.
- Insult of Endearment: She calls Lincoln "Lame-o" in the notes she gives him - the same notes she signs with hugs, kisses, and hearts.
- In the Hood: She wears a purple hoodie.
- Jerk with a Heart of Gold: She's a rude and abrasive bully, but she does actually like Lincoln, and even helps him when he's being teased by friends for being her boyfriend by slapping him for kissing her, convincing Lincoln's friends that they're not dating.
- The Lad-ette: Lincoln thinks of her as "rude and gross" and assumed she was raised by trolls, so Ronnie Anne seems to fit this trope. She's also fairly aggressive and prone to violence when she's mad.
- Large Ham: Ronnie Anne tends to over dramatize her feelings.
- Loving Bully: What the Loud Sisters think she is. And they're right!
- Masculine Girl, Feminine Boy: The Masculine Girl (a rough and aggressive Loving Bully) to Lincoln's Feminine Boy (has a stuffed rabbit and is In Touch with His Feminine Side)
- The Napoleon: She is small in size and a bully.
- Not So Different: She and Lincoln bond over being equally disgusted by Bobby and Lori's super cheesy romantic couple-y-ness. Lincoln is surprised to find that he actually really likes hanging out with her. They both also play video games and visit the arcade.
- Only Known by Their Nickname: She's primarily known as "Ronnie Anne" rather than her real name, "Ronalda".
- Reformed Bully: After her first physical appearance, it seems that her relationship between her and Lincoln is more on the lines of a Masculine Girl, Feminine Boy romance over a bully and her victim. Heck, she seems to be a lot nicer to him since she first appeared and has nice interactions with Lincoln's friends, and her public bullying of Lincoln is done with his consent so that he isn't teased for having Ronnie Anne for a girlfriend.
- Secret Relationship: With Lincoln. Due to the non-stop teasing he was receiving because of it, the two decide it's best to act like they aren't dating.
- Strong Family Resemblance: She gets her physical looks from her mother.
- Tomboy: Probably on the same level as Lynn.
- Tomboy and Girly Girl: Tomboy to Carlota's girly girl.
- Tomboyish Ponytail: Ronnie Anne wears her hair in a low ponytail, and she's fairly masculine in nature.
- Tomboyish Voice: She has a fairly deep voice, suiting her tomboyish nature.
- Tomboy with a Girly Streak: Ronnie Anne Santiago is a hardcore tomboy, comparable to Lana or Lynn. She's abrasive with bully-like tendencies (though this trait has wound up being Downplayed) who is turned off by how mushy a lot of typically girly things are, and enjoys video games and skateboarding. She also wears pink socks and the same type of girly slip-on shoes that Lori wears, not to mention a pink hair decoration in what is a pretty well-kept ponytail. She is also quite sensitive as revealed in "Save the Date" when she cried over Lincoln insulting her. At the end of the Loudest Mission, she began taking a liking to Dream Boat as well, even if she initially disliked it in the beginning.
- Tsundere: She reacts to Lincoln kissing her by punching him... then throws a rock through his open window with a note tied to it, apologizing and telling him to text her, followed by a raw steak for the black eye she gave him. She seems to be acting this way in "Save the Date" when she slaps Lincoln the day after his double date with her and Lori and Bobby for kissing her, but it turns out that she was just slapping him so that his friends would stop teasing him about being her boyfriend.
- Youthful Freckles: She has some freckles on her cheeks.
Oldest child and only daughter of Casagrande family, Carlota is a 17-year old girl who is into fashion.
- Big Beautiful Woman: She's the same age as Lori but far more plump and full figured
- The Fashionista: She is really into fashion.
- Genki Girl: An enthusiastic teenage girl, especially when it comes to fashion.
- Hartman Hips: Just compare her to Lori.
- Identical Stranger: She could easily be inferred as a minority version of Leni in that both are beautiful fashion-obsessed teenage girls who are genuinely nice.
- Innocently Insensitive: When Ronnie Anne suggested that Carlota should give Lori a makeover, Carlota assumed that Ronnie Anne was talking about herself and made some mean comments about Ronnie Anne's regular outfit as a result.
- Nice Girl: Carlota seems to be a pretty friendly person.
- The Smurfette Principle: She's the oldest and only daughter of the four Casagrande-children.
- Spicy Latina: She is an attractive Latina girl.
- Tomboy and Girly Girl: Girly girl to Ronnie Anne's tomboy.
Second oldest child of the Casagrande family, Carlos is a kind 13-year old boy who loves playing pirates and superheroes. He has Down syndrome.
- Adorkable: A very playful and sweet kid who is always in his own little world.
- Cannot Keep a Secret: He told Ronnie Anne and Bobby about their mom's plans to move in with Casagrandes. To be fair, they would find out soon enough anyway. He is also not above using Brutal Honesty as "The Spies Who Love Me" shows - when Carlota tries to tell their grandparents that they are too old to accompany Ronnie Anne downtown as delicately as possible, C.J just blurts it out.
- Cheerful Child: Mentally so. CJ is 13, but he has the demeanor of a hyperactive child.
- Childish Tooth Gap: He has visible tooth gaps to showcase his youthfulness.
- Children Are Innocent: Since CJ has Down syndrome and sports a very childlike disposition, he is treated more sensibly by the main cast rather than as a rebellious teenager.
- Cloudcuckoolander: It's obvious that he is quite different.
- The Cutie: A playful and kind-hearted teen boy devoid of malice.
- Elmuh Fudd Syndwome: CJ has obvious rhotacism, though it's played more realistically than some other examples of this trope.
- Fun Personified: Always strives to have fun.
- Ink-Suit Actor: His voice actor has Down syndrome in real life.
- Inspirationally Disadvantaged: Type B. CJ is 13 yet—due to his down syndrome—has the mannerisms, interests, playfulness, and codependency of an innocent child. This trait sheds a positive light on the childlike idealism of Luan and Leni, who are also teenagers but not confirmed to be mentally deficient. Additionally, he is treated equally by the rest of the cast; however, on the contrary, he is trusted to look after his baby brother , is rather reserved in that he knows when to tone down his Mr. Imagination impulses, and is not above using Brutal Honesty when the situation calls for it.
- Kid Hero: At least ideally. CJ roleplays as a superhero and regularly wears a cape to portray how children's ideals can sometimes be more helpful than adults'.
- Kiddie Kid: Has some child-like interests despite being 13, such as pirates and superheroes.
- Mr. Imagination: CJ is all about make believe.
- Nice Guy: CJ is a pretty sweet kid.
- Older Than They Look: He is 13, but just like Lynn and Luan, he could easily pass for someone a few years younger.
- Only Known by Initials: He is primarily called "CJ", short for his actual name, "Carlos Jr."
- Perpetual Smiler: CJ always has a smile on his face.
- Teens Are Short: He is around Lincoln's height.
- Twofer Token Minority: CJ is a Latin American boy with Down syndrome.
- Vocal Dissonance: He sounds older than he seems.
Second youngest child of the Casagrande family, Carl is a mischievious 6-year old boy.
- Annoying Younger Sibling: To Carlota, mostly because he often messes with her cosmetics.
- Casanova Wannabe: While it's restricted to Lori, who he has a Precocious Crush on, it's painfully clear that Carl wants to see himself as a ladies' man, but because he is only 6, he always fails miserably at being one.
- Childish Tooth Gap: Carl is missing a tooth.
- Dirty Kid: Hasn't even hit puberty yet and is already showing signs of a promiscuous attitude.
- Jerk with a Heart of Gold: He may be mischievious and full of himself, but he loves his family dearly.
- Precocious Crush: He quickly develops a crush on Lori.
- Troubling Unchildlike Behavior: Carl is only 6, and unless he has a case of precocious puberty, he shouldn't be exhibiting promiscuity towards adolescent women.note
The youngest child of Casagrande family, Carlitos is a happy and curious 2-year old who loves imitating others.
- Baby See Baby Do: His defining character trait. Carlitos is mostly shown imitating the other members of his family.
- Spear Counterpart: He is more or less a male version of Lily.
- Stop Copying Me: Perhaps his most defining trait is mimicking the behaviors of those around him. Downplayed in that no-one seems annoyed by such behavior.
The youngest Yates child who is good at art.