Common to the four:
- Big Brother Instinct: All four (especially Kendall and James) are protective of Katie.
- The Danza: All four of the boys share the same first name as their actors.
- Deadpan Snarker: All four have plenty of snarky moments, but Carlos' are less frequent.
- Expository Hairstyle Change: All four of them got different hairdos over the course of the show. Kendall's became shorter and more mussy, James went from long and wavy to short and slicked back, Carlos got a buzzcut, and Logan switched from messy to gelled, resembling Ace Ventura slightly.
- Four-Man Band:
- Four-Temperament Ensemble:
- Kendall: Phlegmatic
- Logan: Melancholic
- Carlos: Sanguine
- James: Choleric
- Lovable Jock: They were on the hockey team back in Minnesota.
- Minnesota Nice: The four of them, despite their quirks and fails, are genuinely Nice Guys, which sometimes clashes with the LA lifestyle.
- Mr. Fanservice: All four, but James is the most notable example.
- Pretty Boy: Many girls in-universe have mentioned how cute they are.
- Played by Kendall Schmidt
- Affectionate Nickname: Katie often calls him "big brother" with genuine fondness.
- Alliterative Name: Kendall Knight.
- All Girls Want Bad Boys: Played With. Boy band tradition dictates there has to be one so he has the job by default, given how the others already have their archetypes (Logan being the smart one, Carlos the funny one, and James the beauty). Ironically enough, this is despite being the most obvious Nice Guy of the four.
- Berserk Button: Insulting or belittling his friends. He's normally the calm and collected one, but in the pilot, when Gustavo told James he had no talent, Kendall went absolutely nuts and had to be dragged out by security.
- Beware the Nice Ones: Kendall can be your best friend or your worst nightmare. When Jo's co-star fakes the two of them being in a relationship for the press and mocks Kendall about it, Kendall flat-out tries to punch him.
- Big Ol' Eyebrows: Kelly even points them out in the first episode.
- Big Brother Instinct: He's very protective of Katie. Most notibly shown in "Big Time Contest" and in the Big Damn Movie.
- Cool Big Bro: To Katie. Unlike most brother-sister relationships in sitcoms, Kendall and Katie are on extremely good terms most of the time and aid each other with their schemes.
- Determinator: In Big Time Movie, he gets punched in the ribs by one of Atticus Moon's henchmen, and gets up as if it were nothing. Keep in mind, that particular henchman had a mallet made of silver for a hand.
- Disappeared Dad: Since Kendall and Katie set dates for their mom, it's assumed their father is either divorced or gone. Nobody even mentions him throughout the series.
- Heroic BSoD: He goes through a small one in The Movie when he finds out that Katie was kidnapped.
- Hair of Gold, Heart of Gold: Kendall has blond hair and is pretty much one of the nicest guys you could ever hope to meet.
- The Leader: Of the band.
- Nice Hat: Kendall tends to sport beanies from time to time.
- Real Men Wear Pink: In "Big Time Secret", he sneaks around with Camille without telling the other guys because he wanted to join a figure skating competition. He tried to hide it because they, as hockey players, would mock him mercilessly.
- Rousing Speech: He's often the one who cheers the group up with his speeches about friendship, even when they are getting into crazy schemes. "Big Time Cameo" even lampshades this when the writers of the sitcom made Kendall's character in the script as "The Motivational-Speeches guy".
- Straight Man: Compared to his friends, Kendall usually is the one who keeps his cool and actively tries to solve the crazy situations they often get into. It can either go well or fail miserably.
- The Strategist: Despite Logan being the brains, Kendall is usually the one who figures out a way to pull off the various schemes the boys do in the show.
- From the first episode:James: Kendall, do something!Kendall: What're you looking at me for? Logan's the genius!Logan: What?! I panic under pressure and you always come up with the answer.(James nods knowingly)Kendall: What? That is so not true ... I know how to get there.
- From the first episode:
- Played by James Maslow
- Afraid of Needles: The only reason he got over this was because he got an allergy that developed to truly horrifying levels.
- Animal Lover: In "Big Time Rescue", he's horrified to learn what "the big dog house in the sky" really means, and adopts the remaining dogs.
- Blinding Bangs: Used to have this in the earlier seasons.
- Catchphrase: Tends to say "She will be MINE!" whenever there's a pretty girl he's interested in. By the last two seasons, it's mostly directed at Lucy.
- Chick Magnet: James is acknowledged as the 'face' of the band in-universe. On one occasion, while helping Logan to ask Camille to the Palm Woods prom, he gives examples on what to do by asking out five nearby girls. All of them say yes.
- Companion Cube: He has a "lucky comb."
- The Ditz/Brainless Beauty: Downplayed. He falls pretty easily for scams (e.g. the fan who ended up kidnapping and locking him in a basement) and isn't very academically smart, but he's also come up with some pretty good plans on the fly throughout the show.
- Drama Queen: He has a tendency to act like this a lot, like when Lucy friendzoned him the first time around, or when he started to apply magazine tests to Kendall, answering as if they were in a relationship.
- Dude Looks Like a Lady: Lampshaded in "Big Time Christmas." In the animated music video with Snoop Dog, the band is depicted as squirrels, but James is the only one with eyelashes.
- Drowning My Sorrows: In "Big Time Contest" he's seen going to the buffet to get what seems to be another meat ball sub. He even says "hit me" to the annoyed caterer.
- Freudian Excuse: He has an overbearing mom who owns a cosmetics company. So, that explains a lot.
- Hidden Depths: In "Big Time Fans", James works out in front of pictures of his heroes: David Hasselhoff, Mahatma Gandhi, and Abraham Lincoln.
- Hollywood Dateless: Despite his good looks, James has had surprisingly few romantic relationships on the show. In fact, for quite a while, he was the only one of the four not to have a recurring love interest (like Jo for Kendall, Camille for Logan, and the Jennifers for Carlos). It wasnt until Season 4 when this role was filled by Lucy.
- Hunk: James is extremely good-looking, and gets noticeably more ripped as the show goes on. Unfortunately for him, he knows it and tends to flaunt it, which more-or-less drives off the girls he's trying to impress.
- I Just Want to Be Special: He's the one most interested in becoming famous in the pilot.
- Iconic Item: James loves wearing bandannas, to the point that his superhero alter-ego is called Bandanna Man.James: Bandannas are cool!
- Ladykiller in Love: Playboy James falls hard for Lucy, and its implied that they get together by the end of the show
- Meaningful Name: His surname reflects he's the fancy "diamond" of the group.
- My Sister Is Off-Limits!: Although they aren't related, he tends to view Katie as his own sister as well. In one episode, he gets very overprotective when she goes on a date with a boy her age, and does everything in his power to ensure that she doesn't watch a PG-13 film with said guy.
- Narcissist: He has a tendency to think only of himself. Despite this, James is actually a pretty loyal guy who cares deeply about his circle of friends.
- Papa Wolf: Towards Katie. He even acts more like a jealous big brother than Kendall himself.
- Screams Like a Little Girl: James has a Running Gag of emitting a very high-pitched shriek whenever he's scared, such as when people threaten to cut his hair or when an especially annoyed Gustavo comes charging at him.
- The Unfavorite: James reminds Gustavo of Matthew McConaughey, which is why Gustavo dislikes him so much. Ironically enough, James was originally the only one who wanted to be a star.
- Played by Carlos Pena-Vega.
- Agent Mulder: He believes in almost anything. He even bought bottles of Zom-be-gone to protect himself from a zombie apocalypse.
- Attractive Bent-Gender: In "Big Time Halloween", Gustavo's machine briefly turns him into a beauty queen.
- The Baby of the Bunch: It's stated on the Big Time Rush Wiki that Carlos was only fifteen when their adventures as a boy band started.
- Ironically enough, in real life, his actor is actually the eldest of the four.
- Big Eater: He is always seen with a corn dog or getting very excited when food is mentioned.
- Character Tics: Tends to tap his helmet twice as a way of psyching himself up.
- Cloud Cuckoo Lander: He is never seen without his helmet and throws himself into all sorts of crazy situations on a daily basis. When he tries to be the voice of reason, you just know that the situation is out of control.
- One example is that his life dream is to be a superhero.
- For his Earth Day project, his idea (and James') was to have a cow in every house. Miss Collins immediately rejected their project.
- Companion Cube: His helmet.
- Hollywood Dateless: Even though he is attractive, incredibly sweet, and part of a very popular boy band, he still spends most of the episodes either looking for a girlfriend or trying to impress The Jennifers.
- Keet: The most hyperactive of the four. Gustavo even has to change one of his break-up songs into a happy one because Carlos was too cheerful to sing it.
- Nice Hat: His protective helmet.
- Pintsized Powerhouse: He's the shortest of the guys (which is ironic because he's the oldest of the four in real life), but also the toughest.
- Token Minority: The only one of the group who is Hispanic.
- Trademark Favorite Food: Corn dogs.
Hortense Logan Mitchell
- Played by Logan Henderson
- Affectionate Nickname: The gang tends to call him 'Logie' from time to time.
- Attractive Bent-Gender/Wholesome Crossdresser: He got into a lecture held in an all-women college, and only got discovered because he blew his cover in front of a room full of Straw Feminists.
- Brainy Brunette: He is the smartest of the group, to the point where all of his classmates were fighting to be partners with him in Green Time Rush.
- Butt-Monkey: When the guys are worried that Wayne Wayne will have someone kicked out of the band, James remarks that he thinks it'll be Logan ... while crouching right next to him. Later, Gustavo and Griffin remark that they thought Logan would be the one kicked out of the band, Griffin going so far as to use the intercom so that Logan would hear him.
- Logan was also sat on by Gustavo and run over by a horde of fangirls. Boy can't catch a break.
- In "Big Time Break", Logan goes through a lot of trouble to attend a lecture from his favorite math celebrity teacher only to find out that she's a crazy feminist and, later on, gets beaten up by a bunch of girls.
- In "Welcome Back Big Time", Logan does several weeks of school work in a day - not just his own, but the rest of the group's too. All James and Kendall do is something very minute so they could claim the work was their own, but Carlos just signs his name.
- Somehow their teacher doesn't put two and two together when Carlos' project includes a working laser.
- In "Big Time Moms," it is revealed that Logan's real name is Hortense, but James' mother made him change it.
- In Big Time Movie Logan gets shot by tranquilizing dart guns ... three times.
- In "Big Time Pranks", the guys hold a prank contest among all of the Palm Woods tenants and Logan is the first one to be disqualified. Funny thing is, nobody even pranks him. He actually pranks himself.
- Crazy Jealous Guy: He can be this for Camille. In "Big Time Secrets," he started stalking Kendall and Camille because he thought they were secretly dating. He literally became Ax-Crazy and started chasing them with an ax-shaped guitar.
- The Ditherer: While filling out a form that asks him what his biggest weakness is, Logan denies it when the other boys says he can be pretty indecisive ... then proceeds to go through a number of choices before finally settling on 'weak bladder.'
Carlos: Okay, then you pick the song. Which one is better, Logan? The "Oh Song," or the "Yeah Song"?Logan: You guys, I'd really rather not get into the middle of this, so um...Carlos: Big surprise. Logan doesn't want to make a decision!
- Lampshaded in "Big Time Songwriters."
- Embarrassing First Name: Logan's real first name is Hortense. Thank goodness for James' mom.Kendall: Me, Carlos, and Hortense are here to see James.Mrs. Diamond: I don't like the name Hortense. Call him Logan from now on.
- Endearingly Dorky: Occasional lab coat, check. Brain of the group, check. Almost always wears a suit/necktie/t-shirt, check. Cute? DOUBLE CHECK.
- Kindhearted Cat Lover: In "Big Time Mansion," Logan visibly lights up when Gustavo mentions that he has a hairless cat they'll have to babysit.
- Not So Above It All: Even though he is the smartest one in the group and likes to think of himself as the responsible one, he is not free of being impulsive or clumsy as well.
- Only in It for the Money: Played for laughs in the first episode.Kelly: You. Name.Logan: Me? No, thank you, I'm gonna be a doctor.Kelly: Yeah? Well, I'm a desperate talent scout, and you have a cute smile, and Justin Timberlake made forty-four million dollars last year.Logan: Hit me. (she slaps a number onto his chest)
- Opposites Attract: He and Camille are this at first. He's a bookish, down-to-earth guy who originally wanted to be a doctor; she's an outgoing method actress who tends to be the loudest person in the room.
- Slap-Slap-Kiss: His relationship with Camille is definitely this.
- Wholesome Crossdresser: He dresses up as a grandma in "Big Time Crush".
- Played by Ciara Bravo
- Annoying Younger Sibling: Averted. She and Kendall actually have a good relationship with one another, and openly state that they love each other. She's also quite close to the other members of the band.
- Affectionate Nickname: Kendall calls her "baby sister."
- Alliterative Name: Katie Knight. Though in spelling only, not pronunciation.
- The Baby of the Bunch: So much so that Kendall and James can't handle the thought of anyone trying to kiss her.
- Badass in Distress: In The Movie, where she's kidnapped after Kendall accidentally gets the villain's suitcase by mistake at the airport and has to wait for the boys to rescue her. Shes not afraid of the villain at all and he is visibly irritated by her criticisms of him.
- Beware the Cute Ones: Do not mess with this girl. When she gets in the mood or has been crossed, she could make Megan Parker look like an angel by comparison. Unlike Megan, however, her victims generally deserve it.
- Big Brother Worship: Unlike many brother-sister bickering dynamics in sitcoms, Kendall and Katie have the best on-screen sibling relationship and aid each other with their schemes.
- Brainy Brunette: Katie has brown hair and is scarily competent for someone her age.
- Character Tics: She tends to tug the boys' ears down to her level when she's pissed with any of them.
- Defiant Captive: In the Big Damn Movie, she's kidnapped. But she openly mocks her captor. He even describes her as "dreadful" and wonders how the boys put up with her.
- Deliberately Cute Child: She knows she's cute, and uses this to her advantage every chance she gets.
- Disappeared Dad: Since Kendall and Katie set dates for their mom, it's assumed their father is either divorced or gone. Nobody talks about him.
- Everyone's Baby Sister: Again, it's a given since she's Kendall's younger sister.
- Foil: To both Kendall and her mom. She is the only one in the family who adapts quickly to competitive and business-focused Hollywood, while they try to stick to their Minnesota lifestyle views. However, they are still very close as a family and can work their way out of any situation.
- Guile Heroine: She is equally as ambitious and manipulative as Bitters, or even Griffin, but her heart is in the right place.
- Improbable Age: One episode has her being in charge of the label, which she is exceptional at.
- Intergenerational Friendship: Is friends with the maintenance man, Buddha Bob, who would sometimes assist her in her schemes. Sometimes gets along with Gustavo, Kelly, and Griffin. One episode has her having a stock business meeting.
- Informed Loner: Jennifer wants her to find more friend her age. Though, Katie insists she's fine with hanging out with the guys, and the maintance staff at the Palm Woods.
- Leitmotif: A mockingly sweet melody. It's also used with other characters, but it's mostly associated with her.
- Little Miss Con Artist: She's very good at coming up with schemes to earn money.
- Little Miss Snarker: A very sarcastic, witty preteen girl.
- Mouthy Kid: Snarky, witty, and straightforward in any situation.
- Not So Above It All: Even though she is unbelievably independent and smart, she's still a preteen kid who has her moments of immaturity. This is shown whenever she has to learn that her mother still knows better than her in other aspects.
- One Head Taller: Has this dynamic with Kendall and James, justafied as she's about six years younger than the boys.
- One of the Guys: So much so that in "Big Time Bad Boy" Jennifer desperately tries to get Katie a girl friend her own age.
- Puppy-Dog Eyes: She's highly aware that she has this and knows how to use them.
- Spoiled Brat: She tries to get spoiled by her mother as much as possible. In "Big Time Strike", she trains BTR to be just as spoiled as she is by demanding Gustavo give them an ice cream bar, a hair salon, a petting zoo, hot tubs, and more.
- Wise Beyond Their Years: Tends to be one of the smartest characters on the show despite being the youngest in the main cast.
- Played by Katelyn Tarver
- Blonde, Brunette, Redhead: Of the three main non-Jennifer teenage girls, Jo is the blonde.
- Career Versus Man: When Jo is introduced, she tries to avoid relationships to focus on her acting career, but ends up dating Kendall anyway. During their relationship, many episodes showcase how they succeed in pursuing their relationship despite having very tight schedules. Jo eventually gets offered a three-year gig in New Zealand and is torn between taking it or staying with Kendall, with him later encouraging her to follow her dreams. She returns earlier anyway and they rekindle their relationship.
- Cute Bruiser: Trained in Judo and flips Kendall over her shoulder several times without appearing strained.
- First Girl Wins: An entire episode is dedicated to Kendall choosing between her and Lucy. He chooses Jo.
- Girl Next Door: Introduced as/fantasized as such, but subverted by her career-oriented ambition and subsequent success making her less "accessible."
- Girlfriend in Canada: She claims she has a boyfriend named "Travis" back in North Carolina so Kendall won't flirt with her. Once Kendall realizes and starts to test her, she hires a guy to pretend to be "Travis", but it fails immediately.
- Hypocrite: Calls Kendall out for being jealous of her completely professional relationship with Jet, yet four episodes prior, she was jealous of Kendall helping Jordin Sparks. However, both instances weren't without justification. Jet did text Jo "I feel the same way about you" implying romantic feelings between the two and Jo did catch Kendall in multiple instances between him and Jordin that could've easily been mistaken for romance.
- Official Couple: With Kendall.
- Only Sane Woman: Between Camille's Large Ham moments and the boys being the crazy bunch, Jo is often relegated to being this.
- Put on a Bus: Breaks up with Kendall to pursue an acting gig in New Zealand.
- The Bus Came Back: Just in time to find Kendall and Lucy making out in the elevator.
- Romantic Interest: She is introduced to have the boys fight over who impresses her first. Then she becomes Kendall's girlfriend two episodes later.
- Those Two Girls: She and Camille become best friends. They're often seen hanging out together when they aren't working or with their respective boyfriends.
- Played by Erin Sanders
- Beta Couple: With Logan.
- Blonde, Brunette, Redhead: The brunette to Jo's blonde and Lucy's redhead.
- Character Development: She was one of the craziest persons in The Palm Woods but she became wiser and more mature over seasons.
- Dope Slap: Especially in the earlier seasons. Camille is easily the resident example of this trope in the show.
- Forceful Kiss: She kisses Logan this way a lot. Not to say that he doesn't appreciate it, though.
- The Glomp: She has a habit of welcoming Logan with a tackle hug. In "Big Time Returns", Logan's subplot has him trying to get Camille to tackle him and her trying to resist the temptation of doing it.
- I'm Standing Right Here: After Logan finds out that she and James kissed and storms off, Kate and Mr. Bitters (who've been watching everything go down like a movie), speculate that Logan and Camille are finished, leading Camille to saying this.
- Just Friends: She and James only kissed because they got too into character while practicing for a role, not because there was any attraction. They promptly feel horrified and guilty by this and try to find a way to tell Logan.
- Large Ham: In-Universe. She tends to exaggerate in her dramatic scenes.
- Method Acting: In-Universe, which is also her main forte, but it's also why she keeps flunking her auditions.
- On one occasion, she brought actual explosives for an audition for a witch character. And in another, she straight up steals $10,000 from Mr. Bitters' safe to stay in character for a special agent role!
- Pint-Sized Powerhouse: Played for Laughs.Camille is shorter than Jo, but she managed to break the boys' apartment door down with a single kick in "Welcome Back Big Time" and knocked out Logan by slapping him in "Big Time Concert". Also in "Big Time Secrets" she flips Guitar Dude with ease playing a role of a spy movie.
- Quirky Curls: Her hair is usually styled this way.
- Savvy Guy, Energetic Girl: The Energetic Girl to Logans Savvy Guy.
- Slap-Slap-Kiss: Literally how her relationship with Logan works. She often slaps him (for auditions, but still) and in the drop of a hat, they flip to Make-Out Kids.
- Straight Man: In later seasons, she becomes less hammy and more sensible and mature than Logan.
- Sure, Let's Go with That: She purposely sabotaged Logan's turn to flirt with Jo by smooching him for an audition.Kendall: One Tree Hill?Camille: Sure. Let's go with that.
- Those Two Girls: In later seasons, she and Jo become best friends. They're often shown hanging out together when they don't have work or are with their respective boyfriends.
- Violently Protective Girlfriend: Downplayed. In "Big Time Campus", she doesn't hesitate to jump aggressively on a guard to protect Logan, who was stuck in a bear costume.
- Alpha Bitch: The three of them rule Palm Woods by being mean to the newbies to "mark territory". All of them share the role equally, unlike most Girl Posses.
- Blonde, Brunette, Redhead: Played with. Jennifer 1 is Brunette, Jennifer 2 is Blonde, Jennifer 3 is African-American with black or auburn-ish hair, depending on how she has it done.
- Expy: Of The Ashleys.
- The Fashionista: The three of them. Averted when Jennifer 1 is separated from the others. Carlos is told that the three of them help each other, which is the reason why she was acting strange during their prom date.
- Girl Posse: So much that they can't keep balance if the group is incomplete. When Jennifer 2 was absent, they completed the trio by replacing her with Carlos.
- Give Geeks a Chance: Even though Carlos is no geek (but very hyper instead), they consider him the "better option" compared to the other guys, given their ridiculously high standards.
- Given Name Reveal: Jennifer 1's surname is Woods, as revealed in "Big Time Prom Kings".
- Hidden Depths: Even though they have a tendency to act like snobby divas, all three have a genuine soft spot for Carlos, with blonde and brunette/Latina Jennifer dating him at some point or another.
- Identically Named Group: The One Steve Limit is triple averted with them, and that's also why they are called "The Jennifers".
- Lovable Alpha Bitch: They can be completely mean and controlling, but they do have soft spots.
- Mama Bears: They warned Carlos about breaking Brunette Jennifer's heart and the subsiding consequences.
- Put on a Bus:
- In "Big Time Fever", Jennifer 2 (Spencer Locke) was away. This becomes a plot point of the episode, making Carlos fill the void. It's never stated in later episodes if Jennifer 2 (Kelli Goss) is that same character or another blonde girl also named Jennifer.
- They are notably absent during most of Season 4 until the final chapter, except for Jennifer 1, who is replaced by a cardboard cutout carried by the other two. According to them, she had to stay longer on the movie they were filming overseas during the season.
- Romantic False Lead: Carlos has been trying to be the boyfriend of either of them for three seasons. Each one gets to date him at different points, but ultimately he chooses Alexa Vega, who he met that day.
- Power Walk: Their standard way of entering a scene. Lampshaded in "Big Time Fever" that they walked normally prior to moving to Hollywood.
- Token Trio: Jennifer 1 is implied to be Latina, Jennifer 2 is white,and Jennifer 3 is African-American.
- Played by David Cade
- Actor Shipping: Invoked. Jet tries to pull this with Jo so he can get even more publicity for New Town High.
- Attention Whore: Adores publicity, no matter the context.
- Arc Villain: For Kendall and Jo's relationship, but the rivalry was in its prime for long enough to make him...
- Big Bad: For season two.
- Brainless Beauty: You thought James was vain? Jett is ten times worse. Instead of helping Kendall on their school project, he wasted resources, time, and made himself a big cardboard box to pose as a Ken doll.
- The Ditz: He has absolutely no interest for anything outside of his appearance. In the Finale, he completely forgot the Tween Choice Awards date, missing also his nomination for "Perfect Hair".
- Evil Counterpart: To Kendall and James. While Kendall is smart, a loyal friend, and loving boyfriend, Jett is completely egocentric, dumb, selfish (almost like James but without his good attributes), and only wants to hook-up with Jo for publicity.
- Jerk Jock: Acts like one.
- Jerk with a Heart of Jerk: In Big Time Sneakers he actually worked with Jo's publicist to try to strong-arm Kendall and Jo into breaking up, or else they will ruin Jo's job on New Town High.
- Nice Character, Mean Actor: Presumably, as his character and Jo's are love interests on New Town High, but Jett himself is a total Jerkass.
- Romantic False Lead: To Jo.
- Sixth Ranger: In Enemy Mine situations.
Lucille "Lucy" Stone
- Played by Malese Jow
- Asian and Nerdy: Her parents think that she is this as a classically-trained concert violinist. In reality, Lucy is anything but.
- Careful With That Ax: Played with. She has a guitar with an ax blade on it. Logan steals it when he thinks Kendall and Camille are dating, and proceeds to chase them around the hotel while wielding it.
- Freaky Fashion, Mild Mind: Lucy has red streaks in her hair and dresses like a stereotypical rocker chick, but is really quite friendly once you earn her trust.
- Huge Guy, Tiny Girl: With James in Season 4. At 5'3, Malese is the shortest of the female cast; at 6'1, James is the tallest of the males.
- I Want My Beloved to Be Happy: She left the Palm Woods to allow Jo and Kendall to rekindle their relationship and didn't make drama for it.
- However, she did write a song about Kendall dumping her for Jo in "Big Time Swifted" and eventually moved back into the Palm Woods.
- Only Sane Man: In "Big Time Lies," she says that guys are all weird.
- The Rockstar: Subverted. Lucy is fairly level-headed and tends to be the voice of reason when she's around the guys.
- Romantic False Lead: She was starting a relationship with Kendall, until Jo came back unexpectedly.
- Ship Tease: With James, after she returns.
- Woman Scorned: While she was willing to leave when Kendall chose Jo over her to stay out of the way for a while, she still didn't take it nicely. She ended up releasing a single about being dumped in an elevator, basically swifting him.
- Played by Challen Cates
- Almighty Mom: Even Katie knows there're things her mom does better than her.
- Blonde, Brunette, Redhead: The redhead to Brooke Diamond's blonde and Sylvia and Joanna's brunettes.
- Foil: To Katie. While she is a lovable mom who sometimes goes into My Beloved Smother mode, Katie is very independent and ambitious, which clashes with her way of doing things in life.
- Good Parents: For a single mother watching five kids, three of whom aren't hers, she does a pretty amazing job. She's protective, supportive, and caring to all of them, and treats James, Carlos, and Logan as her own.
- Last-Name Basis: Aside from Kendall and Katie (they call her "Mom"), everyone else always refers to her as "Mrs. Knight" or "Mama Knight". Whether this is to avoid confusion with The Jennifers is anyone's guess. Her first name was only used once by James' mom.
- Mama Bear: She beat up another mom because she insulted Katie.
- Minnesota Nice: Tries to adapt to LA while still being nice, but it doesn't always work.
- Parental Substitute: To James, Logan, and Carlos.
- Played by David Anthony Higgins
The manager of the Palm Woods who has it out for the boys. He mainly has a rivalry with Katie.
- Butt-Monkey: He is one of the most frequent victims of the boys' shenanigans in the Palm Woods.
- The Chew Toy: As recurring Butt-Monkey, he is also prone to receiving all the physical suffering, such as being stabbed in the hand with a pen by Jenny.
- Evil Laugh: A Running Gag is that everything happens to him in the middle of his Evil Gloating Laugh.
- Fat Bastard: During his Jerkass moments.
- Intergenerational Friendship: With Katie, since she seems to hang out more with grown-ups than with kids her age.
- Jerk with a Heart of Gold: While he is greedy and unsympathetic to his clients, he also has his moments towards the boys or Katie.
- Meaningful Name: His last name gives you a good indicator of his personality.
- Momma's Boy: He adores his mom. It's the reason why he tries to pretend he has a family, just so she won't get dissapointed in him.
- Sitcom Arch-Nemesis: To Katie.
- Played by Daran Norris
The Palm Woods' janitor. While appearing to be crazy, he is actually very sensible and likable.
- Almighty Janitor: Played with. He is very capable and has many hidden depths, but his communication skills are average and he is not very smart.
- Ax-Crazy: Played with. He used an ax to cut a doughnut in half, which causes Mrs. Knight to think he is this.
- Companion Cube: With Plungie.
- Easy Amnesia: When Ms. Knight accidentally hits him with a pan, he starts believing he is the Fairy Godparent Cosmo.
- Expy: Of Gordy, who was also played by Daran Norris.
- Face of a Thug: When moving into Palm Woods, Mrs. Knight thought he was an Ax-Crazy serial killer after seing him in very unlikely situations. It took her a while to realize he was the maintenance guy.Katie: My mom thinks you're an ax maniac.Budda Bob: That explains why she screams every time she sees me.
- Hidden Depths: In Big Time Wedding Buddha Bob reveals that he's a great cook, mechanic, teller of make-believe stories. and can re-tile a bathroom pretty well.
- Nice Guy: Despite his gruff appearance, Buddha Bob is one of the nicest characters on the show. Heck, he's even nice to Bitters.
- Played by Tara Strong
The teacher at the Palm Woods School.
- Beware the Nice Ones: She doesn't care about producers, as Gustavo well knows.
- Cool Teacher: She's a very nice and charming teacher, but only if you behave in class.
- Hot Teacher: She is played by Tara Strong, after all...
- Reasonable Authority Figure: She understands when Logan prefers to delay their project and properly tutor his partner, and concedes about giving them the extension.
- Stern Teacher: While she knows her students are also busy celebrities, she will put their education above everything, even over their careers.
- Played by Barnett O'Hara
One of the band's friends. As his nickname says, he is seldom seen without his guitar.
- Chuck Cunningham Syndrome: In Season 3.
- The Bus Came Back: Appeared in a few episodes in the last two seasons.
- Played by Tucker Albrizzi
- Chuck Cunningham Syndrome: In season 3.
- Foil: To Katie. He tries to avoid all sorts of celebrity jobs, while Katie loves the Hollywood business. Despite this, they're quite good friends, and seem to be the only friend their age that either one has.
- Stage Mom: His mother tries very hard to get him any kind of casting, which results in him hiding from her all the time.
- Played by Stephen Kramer Glickman
The boys' manager. A disgraced music manager from the '90s trying to get back on top. He constantly refers to the boys as his "dogs" and nearly every episode has him writing a song.
- Bald of Evil: He isn't exactly evil, per se, but he is rather mean to everyone and barely has any hair left.
- The Chew Toy: He gets beaten up, suffers from frequent rage-induced high blood-pressure (courtesy of Kendall), and he once even got hit by Snoop Dog's limousine.
- Freudian Excuse: According to Kelly, he was forbidden to play as a child and was only allowed to practice piano all day long, hence his perfectionist nature and serious commitment to his job.
- Hates Everyone Equally: Lampshaded by Katie.Katie: Don't you need to be in love to write a love song? You're not wearing a ring and ... don't you hate every living thing?
- Hot-Blooded: Probably his defining characteristic. His Kendall/BTR-induced rages are even enough to cause earthquakes.
- Jerk with a Heart of Gold: He clearly grows to care about the guys and even Katie, eventually admitting that he loves them.
- Large Ham: And how! All of his lines are delivered by screaming.
- Made of Iron: He got hit by Snoop Dog's limousine in the Christmas episode and by a bus twice in "Big Time Scandal" and came out of both with only minor injuries (but a lot of bandages).
- Mean Boss: He's constantly insulting and screaming at people he considers beneath him ... which is pretty much everyone.
- No Indoor Voice: He shouts whenever he is angry or annoyed ... which makes it an everyday occurrence.
- Pet the Dog/Kick the Dog: He literally calls the boys "dogs" (or "monkey-dogs"), and alternates between these two.
- He literally says "Throw the Dog a Bone" when he lets the boys keep their remodeled apartment.
- The emergency password to his secret vault is "My Dogs" with the hint being "Something You Love".
- Psychopathic Manchild: He throws childish tantrums in almost every episode and is very fond of screaming.
- Platonic Life-Partners: With Kelly. They are always together, and have a close, albeit tense, friendship.
- Record Producer: Of the Producer from Hell kind, but played for laughs. All his former artists grew to hate him due to his bad temper. Kelly points out that Big Time Rush is the first group Gustavo grew to like. Later on, he grows into Acrimonious Producer after he and the boys get along better and Griffin becomes more antagonistic.
- Surrounded by Idiots: Gustavo is mostly like that with his boys.
- Ungrateful Bastard: BTR and Kelly both call him out for almost never thanking BTR for all their hard work. After all, BTR is the reason Gustavo can afford a huge mansion packed with expensive luxuries.
- Vitriolic Best Buds: Heavily on the vitriolic side with the boys (especially with Kendall). He shouts at them constantly, and they do more than their fair share to get on his nerves, but he really does care about them.
- Would Hit a Girl: With comedic purposes regarding his interactions with Kelly.
- Well, in that episode, Kelly was "Gustavo".
- Played by Tanya Chisholm
Gustavo's saner assistant.
- Bad Liar: As seen in the "Big Time Bad Boy" episode, Kelly isn't very good at lying, especially to Gustavo's face.
- Beleaguered Assistant: In Gustavo's worst moments.
- Beware the Nice Ones: She's nice but can be very fierce if pushed. Then again it's the entertainment business, so she'd have to be.
- Cute Bruiser: A One of the Boys assistant who can easily knock out her boss.
- Mama Bear: Towards the boys. She once snapped when Gustavo decided to break Carlos' heart by hiring an actress just so he could sing a break-up song properly. Her response? Threatening to smash every single one of his trophies with a baseball bat if Carlos got hurt in any way.
- Morality Pet: To Gustavo occasionally.
- Parental Substitute: She acts very maternal towards the boys and will protect them if they're threatened.
- Promotion to Opening Titles: Season two and beyond.
- Servile Snarker: She didn't need to be one to be Gustavo's assistant, but it sure helps!
- Straight Man: Mostly overruled when the boys and Gustavo enter crazy mode.
- Played by Matt Riedy
- Cloudcuckoolander: Mercedes once said her father loved Lolo, the chimp, more than her.
- And the chimp was the music inspector.
- Later Griffin demotes Lolo to Nuclear Missiles inspector.
- He also loves warm pants a lot.
- And the chimp was the music inspector.
- Corrupt Corporate Executive: Even played with in Big Time Halloween. His supernatural alter ego was basically himself, but with a red suit.
- Doting Parent: He spoils Mercedes a lot.
- HeelFace Revolving Door: And around and around and around he goes! One episode he can be the happy Cloudcuckoolander boss, and the next episode he may want to close Roque Records unless they make more money for him.
- Jerk with a Heart of Gold: It comes and goes.
- Played by Stephen Keys
- The Big Guy: Of Gustavo's employees. He is "the guy who makes people do as Gustavo says."
- Gentle Giant: Despite being the big bodyguard in charge of dragging the boys to work, he is very insightful and well-mannered, unlike Gustavo. Carlos even admits to enjoying the free shoulder rides he gives.
- Only Known by Their Nickname: They only refer to him as "Freight Train," which is very unlikely to be his real name.
- Real Men Wear Pink: Despite his intimidating appearance, he admits he would be touched by the new song if he were a girl.
- What Happened to the Mouse?: After Seasons 1 and 2, hes nowhere to be seen nor mentioned. He probably quit his job.
- Played by Carlie Casey
- Consummate Liar: She lied to the boys about being the musical-hit adviser so she could date each of them. When she actually tells her dad the truth, Griffin's first reaction is to verify with the others.Griffin: Is all that true? Because she lies. A lot.
- Expy: Of Missy Meany. Justified as the same actress plays both characters.
- Freudian Excuse: She attributes her mean and spoiled attitude to Parental Neglect, as she even states her dad loves his chimp more than her.
- It's All About Me: The reason she did not pick James as her boyfriend was because she would never date a guy prettier than her. James was very much happy with that.
- Jerk with a Heart of Gold: After her outburst when Kendall tells her off, she returns to apologize and make amends by telling them how Griffin could pick them for the album release.
- Played by Phil LaMarr
Producer of Hawk records and the Big Bad of season one. His main motives are to bring Gustavo down and to ruin the boys' careers. In the season finale, he tries to get James to sign an independent contract but when the boys get back together, he kidnaps them and ends up arrested.
- Animal Motifs: He tries to make the Hawk his signature style, even though nobody really likes the "Caw!!" shtick.
- Arch-Nemesis: To Gustavo.
- Big Bad: Of season one.
- Deal with the Devil: With James; Hawk is the devil of the deal in ''Big Time Concert."
- From Bad to Worse: In Big Time Superheroes.
- Large Ham: Even bigger than Gustavo, if you can believe it.
- Played by Lorenzo Lamas
- Bad Liar: While trying to help Logan with his lie, he panics and makes the situation even worse by saying "It's serious".
- The Ditz: He is very absent-minded on duty.
- The Mentor: He sees a lot of potential in Logan as a future doctor and tries to convince him to work full time on the career (which also meant that he would have less time for the band). After that, he still gets along well with Logan.
- Played by Sammy Jay Wren
- Born Unlucky: The boys know Jenny has been like this since kindergarten. James needed stitches in his arm for a papercut.
- British Rock Star: She becomes the new lead singer of Death Smash because of her destructive talent and potential as the new Face of the Band.
- The Bus Came Back/Ascended Extra: She started as a minor character who was rejected in the auditions of the pilot. She returns a season later in "Big Time Fans", as Carlos promised to help her in her singing career.
- Cute Clumsy Girl: Everywhere she goes, something is going to break or someone winds up going to the hospital.
- Even after setting the building on fire four times, the guys find it impossible to reject her and stomp on her dream.
- Large Ham: Especially when she sings.
- Minnesota Nice: She is as cute and nice as she is lethal.
- Person of Mass Destruction: A fact that terrifies everyone, including the boys.
- James in particular suffered quite a lot.
- In second grade, Jenny accidentally broke his arm while playing marbles. Later in fifth grade, accidentally gave him a paper cut that was serious enough to require surgery. And then in eighth grade, as lab partners in science class; again, accidentally did something to James' hair that made him lose all of it. Logan even notes that it took almost a year for James to grow his hair back.
- Her first two hours at the Palmwoods alone; she trashed an elevator, broke a water main, stabbed Bitters' left hand with his favorite pen and started three fires.
- James in particular suffered quite a lot.
- The Smurfette Principle: When she joins Death Smash. The other two members are big badass rockers (who secretly hated their original leader for making them smash guitars and fake their accents).
Mr. and Mrs. Garcia
- Played by Erik Estrada and Jill-Michele Melean
- Bumbling Dad: He takes his job very seriously, even applying it to his son's daily tasks.
- Good Cop/Bad Cop: Although Officer Garcia is always missing a good-cop partner.
- Like Father, Like Son: Both of them are impulsive, reckless,, and carry their helmets everywhere.
- Papa Wolf: Back when Carlos was little, Officer Garcia lined up an interrogation session to find out who stole Carlos' lollipop, prompting the guilty kid to faint under the pressure.
- Played by Brian McGovern and Lisa Rina
- Almighty Mom/Evil Matriarch: To the point where the only time she didn't get what she planned was because the other three moms teamed against her.
- She even got the boys to enroll in ballet instead of hockey and got them to call Logan by that name rather than by his given name, Hortense (although this last one is probably for the best).
- The Baroness: She's the head of a major cosmetics company back in Minnesota—in fact, she's so successful that she's been dubbed the "Estee Lauder of the Midwest."
- MayDecember Romance: James claims that after his parents got divorced, his dad got remarried to a woman who's fifteen years younger than him—and that's at least part of the reason why his parents don't really talk to each other anymore.
- My Beloved Smother: Very much. She tends to decide things for her son without consulting him. When she makes the decision that he should move back with her, he can't even stand up to her despite clearly not wanting to go home.
- Tsundere: His mother's excuse for taking James with her is because she plans for him to take over the business, but in reality she just misses him a lot.
Lucy's ex-boyfriend from Georgia. Shortly before she moved to California, she broke up with him when she discovered he was cheating on her.
A rogue secret agent, who stole an anti-gravity device from Atticus Moon, setting the events of the movie in motion. He is unconscious for most of the movie.
- Expy: Do I have to say it?
- Hero with Bad Publicity: Went rogue and has been hunted down like a criminal by the time the movie begins.
A spy in training, and Simon's daughter. When her father goes rogue, she attempts to clear his name and runs into the boys along the way.
- Action Girl: She's a spy.
- Love Interest: To James in the movie.
- Meaningful Name: Most of the soundtrack consists of Beatles songs and takes place in England, so her name is an obvious reference to the song with the same name.
- Played by Trevor Devall
One of the richest men in England who blames the worlds problems on international disagreements and thus wants to start a revolution.
- Arch-Enemy: To Simon Lane.
- Big Bad: Of The Movie.
- Democracy Is Bad: His reason for wanting to Take Over the World.
- Expy: Of Bond Villains, but let's face it—he's no Dr. Evil.
- Karmic Death: Implied. If you think about the logical circumstances, if the Beetle releases him, he'd fall to his death; if not, he'd likely float out of the Earth's atmosphere and die of asphyxiation. Then again, The Movie is a homage to James Bond films and how many Bond villains do you know that live?
- Knight of Cerebus: Doesn't act like one but let's analyze — his evil plan would have resulted in countless deaths and/or injuries to people around the world, his henchmen appeared to have guns, and we don't know what he would've done to Katie after he abducted her. Also let's come to terms with the possibility that he and some of his henchmen were some of the first villains to die on this show.
- In addition, he's the first real threat the show has seen. Hawk may have been a nasty person, but he was just threatening a boy band. Moon? He threatened the entire world.
- Right-Hand Cat: Played for laughs as he always wants a cat in his hands at the right moment and his henchmen apparently have a cat on hand at all times.
- Spoiled Brat: Acts like one at times.
- Atticus Moon: I always get what I want.
- Take Over the World: His goal.
- Villain with Good Publicity: At first.
- Well-Intentioned Extremist: He claims that he wants to solve the worlds problems by uniting everyone under one leader, as opposed to bickering between nations.
A movie star who has a secret identity and crush on Carlos who appears in "Big Time Dreams"