The Duncan Family (in order of billing):
Portrayed by: Bridgit MendlerA 15-year old high school sophomore and, until the new arrival, the middle child of the family. She records a series of video diaries for her baby sister for when she's older, which form a substantial portion of the show's narrative (and where the title comes from). She cares a great deal for her family, even if she isn't great at expressing her affection for some of them, and has a special attachment to her baby sister, Charlie. So far, she appears to be a good student, and is obsessed with most of the things typical of girls her age, preeminently boys.
- Aloof Big Sister: To Gabe.
- The B Grade: In the episode "Teddy's Little Helper", Teddy uses Charlie to help her get out of the abomination of getting a B in English class on her progress report. Hilarity Ensues.
- Big Sister Instinct
- Captain's Log: Her video diaries.
- Catch Phrase: "Good luck, Charlie", though it's frequently borrowed.Lampshaded in "Future Drama":Future!Charlie: (after her attempt at following Teddy's advice has failed) I really have to watch these things to the very end. It's not over until she says...
Teddy: (on the computer screen) Good luck, Charlie.
- Cool Big Sis: To Charlie and when not the Aloof Big Sister, to Gabe.
- Cute Clumsy Girl
- Deadpan Snarker
- Dude Magnet: She's well aware that many boys find her attractive. This becomes a plot point in several episodes, such as "Teddy Rebounds".
- Follow in My Footsteps: Amy pushes Teddy to try to be the school mascot, purely because she was the mascot when she was a student. Amy also pushes Teddy to wear her old prom dress to Prom. Teddy then hides a prom dress in the bushes so she is able to wear a prom dress more fitting of her style.
- Gender-Blender Name: Lampshaded in "Take Mel Out to the Ballgame":Mel: Teddy? Charlie? Doesn't your dad know any girl names?
- Go-Getter Girl: She's determined to get good grades, thinks getting a B is bad, and even joins the volleyball team to pad her college resume, even though she stinks at it.
- Hair of Gold, Heart of Gold: In-universe, she's considered to be this to a fault.
- Informed Attribute: Teddy being a goody two shoes in some episodes.
- Ms. Fanservice
- Mysterious Middle Initial: Teddy's middle initial is R. It hasn't been stated what the R stands for.
- Nice Girl: While her In-Universe reputation as a "goody-goody" is definitely a stretch, she's proven to be the 2nd nicest character in the show (after PJ), and is always there for her friends and family, even if it means self-sacrifice
- Official Couple:
- With Spencer, as of "Charlie Goes Viral", and up until "Girl Bites Dog". Restarted in "Can You Keep a Secret?", up until "All Fall Down"
- With Beau as of "Teddy's New Beau", until "Bob's Beau-Be-Gone".
- The Southpaw
- Spoiled Sweet
- Tomboyish Name: She has a boyish name like her sister Charlie.
- The Ugly Guy's Hot Daughter: Noted by Uncle Mel.
- Women Are Wiser
Portrayed by: Leigh-Allyn BakerThe 30-something mother of the Duncan family, who works as a nurse at a hospital. The main source of the show's humor and drama is the rest of the family's often-misguided attempts to help take care of the baby as Amy returns to work. She seems like the Only Sane Man but her ego and Spotlight-Stealing Squad mentality keeps her from this.
- Adults Are Useless: Averted.
- Ambiguous Disorder: See "Attention Whore" below.
- Attention Whore: Loves being in the spotlight. She once hired a fake family to perform a musical number with her onstage because her real family lacked the finesse (and dedication).
- Catchphrase: "Ba-Bam!"
- Deadpan Snarker
- Friendly Rivalry: Her relationship with Mary Lou, Ivy's mom.
- Flanderization: Originally she played the role of Only Sane Woman and just occasionally thought of herself as very good at something (like being her school mascot, even her coach agreed she was a great mascot), but by the end of Season 1 it turned into a case of Small Name, Big Ego.
- Genre Savvy
- Happily Married: To Bob
- High School Sweethearts: With Bob.
- Hospital Hottie: She's an attractive nurse.
- Huge Guy, Tiny Girl: With Bob.
- Jerk with a Heart of Gold
- Lethal Chef: Heavily implied.
- Mama Bear: Actually used by the Duncans to describe Amy - and she owns the trope to very good effect. In simple terms: mess with her offspring... and you will pay for it.
- Manipulative Bitch: Towards Lauren Dabney and her own son (Gabe) in "Rat-A-Teddy"
- Ms. Fanservice: Even more so than her daughter
- Never My Fault
- Only Sane Woman: Originally.
- Parent Service
- Small Name, Big Ego: Amy likes to think that she's the best at everything she does, and seems to believe that she's a big time star just waiting to be discovered; she once replaced her family (except Charlie) with professionals for a group talent show, which she didn't technically apologize for.
- Spotlight-Stealing Squad: In-universe.
- Stage Mom
- Team Mom: Most notably in the episode "Team Mom."
- Ugly Guy, Hot Wife
Gabriel P. "Gabe" Duncan
Portrayed by: Bradley Steven PerryThe sarcastic, often dour 10-year old son, who resents Charlie for having usurped his position as the baby of the family, and thus drawing a good deal of attention away from him. His perceptions seem somewhat justified. Continues the proud Danny Bonaduce tradition of looking nothing like the rest of the family.
- Aloof Big Brother: To Charlie.
- Annoying Younger Sibling: To PJ and Teddy.
- Brilliant, but Lazy
- Butt MonkeyPJ: We used to do all kinds of fun stuff.
Gabe: When did that stop?
Teddy: Let's see... how old are you?
- Deadpan Snarker: He's constantly sarcastic.
- The Eeyore
- Eviler Than Thou: He and Mrs. Dabney are always on the banter about this.
- He Is All Grown Up: As of the Season 4 premiere.
- Jerk with a Heart of Gold: He has his moments.
- Hollywood Genetics
- Mouthy Kid
- Middle Child Syndrome: Became like this after Toby's birth.
- Mysterious Middle Initial: What does the P in Gabriel P. Duncan stand for again?
- Given the general Star Wars theme they seem to use when naming their children, Padme, or even Palpatine, might be good guesses.
- The Prankster: He's known for being a troublemaker.
- The Snark Knight: Gabe and Mrs. Dabney all work this trope like dogs on a T-bone.
- Tall, Dark and Snarky: Gabe's shaping up to be this in Season 3.
- The Unfavorite: Things are so hectic in the series premiere that the rest of the family forgets to feed him.
- Token Evil Teammate
Charlotte "Charlie" Duncan
Portrayed by: Mia TalericoThe 9-month old (as of the series premiere, currently 4 years old) newest addition to the Duncan family. She begins the series as an infant, not doing much except make noise, pooping and spitting up. Nonetheless, she's extremely cute, and quickly progresses to new milestones, such as making her first attempts at real English words, and taking her first steps. She is whom the series' title comes from.
- Annoying Younger Sibling: To some extent, to the point of sometimes being nosy.
- Aesop Amnesia: In Guys and Dolls Amy tried to help Charlie with her jealousy of Toby, which seemingly worked. Amy pretended to make Toby talk and say that Charlie is his favorite sister. Come Doppel Date however, Charlie wanted Toby to stay in the hotel. Justified in that she's still a toddler, but "Futuredrama" indicates their dynamic hasn't changed since.
- Character Development:
- She gets a lot more characterization in seasons 3 and 4. As she grows up, she seems to take after Gabe, who was jealous of her, whereas now Charlie is jealous of Toby. She also appears to be shaping up to be a troublemaker, like Gabe. She's also inherited her mother's ego which has lead Amy and Bob to say she's her mother's daughter.
- In Duncan Dream House, for the first time, Charlie was actually right about keeping their old home, and even had her own scene where she talks to her imaginary circle.
- If "Futuredrama" is any indication, she grows up to be more like Teddy.
- The Cutie
- Deuteragonist: From Season 3 onward, Charlie is given a lot more character focus, mostly due to her growing up.
- Evil-Detecting Baby: In "Girl Bites Dog", Charlie bites Spencer because she somehow knows he's cheating on Teddy.
- From the Mouths of Babes
- Gender-Blender Name: Charlie.
- Genre Blindness: Her future self learns this the hard way after getting beat up by 11-year old Toby, since she forgot to wait for the ending tagline of the video diary, "Good luck Charlie!"
- Little Miss Snarker: She's shaping up to be this in Season 3. This became evident when she picked up the phrase "aw nuts" from Amy.
- Only Known by Their Nickname: Charlie's real name is Charlotte.
- Ping-Pong Na´vetÚ: Charlie often appears really smart for a baby, but she'll be the Spanner in the Works if the plot calls for it.
- Plot Device: Being about 9 months old, she starts out as such. However, thanks to Character Development due to her growing up, there are some episodes where she gets a subplot of her own.
- Secondary Character Title: The main character is Teddy, who is making a series of video diaries for Charlie to watch in the future, all of which end with Teddy telling her "Good luck, Charlie".
- She's All Grown Up: Her future self. The present Charlie even lampshades this during the Credits Gag of "Futuredrama".
- Shipper on Deck: Implied to be this towards Teddy and Spencer.
- Tomboyish Name: She has a boyish name, just like her sister Teddy.
Portrayed by: Eric Allen KramerThe 40-something man of the house. Bob runs his own business as an exterminator. He seems rather absent-minded (not being able to recall Gabe's birthday or where he goes to school), and can be quite clumsy at times. He's also quite fond of his daughter Teddy, and can thus be overprotective of her.
- Adults Are Useless: Sometimes averted.
- And Starring: "With Eric Allen Kramer"
- Berserk Button: This cannot be stressed enough: Do not call Amy "crazy" or "a pest" in front of Bob - unless you're family... or Amy. Yes Mr. Piper, we're talking to you.
- Big Eater: Often becomes the butt of the jokes due to this.
- The Big Guy
- Bumbling Dad: Big time.
- The Conscience: Or at least when his wife goes off the deep end.
- Deadpan Snarker: Surprisingly often.
- Drives Like Crazy: Bob with the new car. First, he crashes it into the kitchen. Then, in the credits, he crashes it into the eight floor of a building.
- Formerly Fat
- Genre Savvy
- Happily Married: To Amy
- Henpecked Husband
- High School Sweethearts: With Amy.
- Huge Guy, Tiny Girl: With Amy.
- Insistent Terminology: Prefers to be called a "pest-control specialist" rather than an "exterminator."
- I Was Quite The Looker: Looked like PJ in his younger years.
- Overprotective Dad: Bob towards Teddy.
- The Nose Knows: Bob was able to identify the sex and species of a mouse, as well as the fact that it was pregnant, by analyzing the scent of its droppings.
- Ugly Guy, Hot Wife
Potty John "PJ" Duncan
Portrayed by: Jason DolleyThe 17-year old eldest child of the family. He's a phenomenal airhead and a horrible student. His passion seems to be playing rock and roll, even though he's not very good at it. He cares a good deal about his family and wants earnestly to do his part in helping raise his baby sister, but his absentmindedness makes this difficult.
- Aloof Big Brother: To Gabe.
- And Starring: "and Jason Dolley"
- Character Development: He becomes noticeable smarter and more ambitious as the series goes on.
- Cool Big Bro: To Charlie.
- Dreadful Musician: Depending on the Writer
- Deadpan Snarker: Has his moments, most notable in Name That Baby.
- Dumbass Teenage Son: A good example would be his boss putting him on the case to find out whose been stealing chicken from the restaurant. It was the boss himself, and he put PJ on the case because he figured he was too stupid to work it out.
- Dumb Blonde: PJ is the family Ditz and has blonde hair.
- Embarrassing First Name: According to his birth certificate, PJ's name is revealed to be "Potty John". Bob tries to get it corrected, but PJ's name is now "PP" Duncan.
- PJ is a grungier, working-class version of Newt Livingston. This is made even more pronounced by the fact that the same actor plays both characters. PJ is probably smarter than Newt, but the characters on this show are smarter too, so it balances out.
- Older viewers might notice a few striking resemblances to Jeff Spicoli. Take away the surfer accent, the Brilliant, but Lazy facets of Spicoli and the fact that Disney can't feature the main trait that everyone remembers Spicoli for, and you have PJ.
- Follow in My Footsteps: Bob states that he'd like PJ to join him in pest control, and he'd rename the company to "Duncan & Son" if he did. PJ immediately decides to go study.
- Genius Ditz: It's been stated and proven that he's the best cook in the house.
- Kiddie Kid: In spades. The most visible example being how his favorite show is The Gurgles, a Teletubbies Expy starring singing, dancing shapes that even Charlie has outgrown.
- Momma's Boy: Of all the Duncan kids, PJ is undoubtedly the one closest to Amy. Amy in turn acknowledges that he is her favourite. Generally portrayed in a positive and often sweet light.
- Nice Guy: Bob views PJ as the nicest of his children.
- Official Couple: With Skyler.
- Only Known by Their Nickname: PJ is suppose to be short for Patrick John. Due to Bob's poor penmanship on the birth certificate, it actually stands for Potty John.
- Pretty Boy
- Smarter Than You Look: Hinted at, as when he's focused, he's surprisingly on the ball. Mrs. Dabney even lampshades it: "Sometimes youre smart, sometimes you're dumb. Hard to keep up."
- Supreme Chef: He's not the brightest bulb in the box, but he's one heck of a cook (at least in comparison to Amy).
- Uncanny Family Resemblance: A video of Bob from his high school basketball days shows that he looked exactly like his son PJ does today, only with longer hair.
- Unfortunate Names: PJ's name was supposed to be Patty John, after his grandfather Patrick John, but Bob was so frazzled when signing the birth certificate, that he wrote "Potty John" instead. This is fixed by the end of the episode though. But now it instead reads "PP".
Toby Wan Kenobi Duncan
Portrayed by: Jake Cinoa & Logan Moreau (not credited in opening titles)The newest addition, he shares a birthday with Charlie.
- Audience Participation: The name and gender of the baby was determined by an online poll.
- Punny Name: His full name is Toby Wan Kenobi Duncan.
Portrayed by: Raven GoodwinTeddy's best friend. She hopes some of Teddy's popularity will rub off on her, and she thinks the Duncan family is incredibly strange but more entertaining than her own family. She's also a horrible student who rejoices over receiving her first B.
- All Women Are Lustful
- Black Best Friend: To Teddy.
- Book Dumb: Ivy waited until her sophomore year in high school to get her highest grade ever: a B.
- Deadpan Snarker
- Expy: Ivy is clearly Mercedes.
- The Fashionista
- Fat Best Friend
- Sassy Black Woman: Teenage version.
Portrayed by: Micah WilliamsPJ's somewhat nerdy best friend, and the drummer in his band. He has an incredibly creepy crush on Teddy, which he's deluded himself into thinking is an actual relationship.
- Black and Nerdy
- Black Best Friend: To P.J.
- Dreadful Musician
- Nice Hat: Is usually seen wearing one.
- Stalker with a Crush: Towards Teddy.
Mrs. Estelle Dabney
Portrayed by: Patricia BelcherThe Duncans' next-door neighbor. Mrs. Dabney is cranky, unfriendly, and at times, manipulative. Born in 1958 in Sheboygan, Wisconsin, she comes from a set of identical quintuplets, none of which are anything like her personality-wise.
- Card-Carrying Villain
- The Comically Serious
- Deadpan Snarker
- Evil Redhead
- Manipulative Bitch
- Mistaken for Murderer: PJ and Gabe misinterpret her outburst at her soap operas, and her attempts to get rid of the smell of death and a large, heavy trunk as evidence that she murdered her husband.
- Polar Opposite Quintuplets: Mrs. Dabney comes from a set of identical quintuplets, none of which are anything like her personality-wise.
- Sassy Black Woman: Averted. However, this begins to show in The Unusual Suspects when she says "You're not the boss of me!" to Amy.
- The Snark Knight
- Uncanny Family Resemblance: Mrs. Dabney apparently comes from a set of identical quintuplets.
- Worthy Opponent: To Gabe.
- Used To Be A Sweet Lady: According to Amy, Mrs. Dabney was much nicer before Gabe came around
Portrayed by: Shane HarperTeddy's study buddy, love interest, and eventual boyfriend (and then eventual EX-boyfriend). After numerous botched attempts, he finally gives Teddy her first kiss. He comes from a wealthy family, about which he's quite modest, and enjoys hip-hop dancing... oh, yeah, and he's a two-timing jerk. Teddy recently decided to give him a second chance and they're back together.
- Character Development: Spencer started out looking like a Satellite Love Interest, but later turned out to be pretty interesting. And then turns out to be a cheating Jerkass. To his credit, Spencer deeply regretted his actions, and has made up with Teddy. They're dating once more.
- Did Not Get the Girl: Sadly, in Teddy's Choice, he does not end up with her, this time through no fault of his own.
- Dumb Jock: At least from Victor's point of view.
- Mistaken for Cheating: Subverted. Teddy thinks Spencer is cheating on her with Skyler, but then learns from Spencer that she's his cousin. He turns out to be lying. He is cheating on her with Skyler, who believes that Teddy is his cousin.
- Mr. Fanservice
- My Greatest Failure: Cheating on Teddy.
- Official Couple: With Teddy, as of "Charlie Goes Viral", and up until "Girl Bites Dog". Restarted in "Can You Keep a Secret?"
- Your Cheating Heart: Turns out Spencer was using the "cousin" excuse to keep Teddy and Skyler from finding out about each other. Doesn't end well for him. For Spencer, this has since become his greatest regret, and it takes a whole season for him to eventually gains Teddy trust while she begins to remember what he meant to her before she fully forgives him enough to take him back.
Portrayed by: G. HanneliusA female student in one of Gabe's classes, she constantly threatens and bullies him. It turns out a part of her motivation is being unable to express her crush on him. Not likely to be seen again since the actress has moved onto other projects, namely Dog with a Blog on the same network.
- The Bully: To Gabe.
- Loving Bully: She bullies Gabe constantly because she likes him.
- Cute Bruiser: She beats up Gabe on a regular basis.
- Gamer Chick
- Gender-Blender Name: Jo is not a very feminine name, which is why Teddy thought she was a boy when Gabe first told her about Jo.
- The Lad-ette
- Little Miss Badass
- Little Miss Snarker
- Pintsized Powerhouse: She breaks Gabe's arm and Teddy's collar bone.
- She Cleans Up Nicely
- The Snark Knight
- Tomboyish Name
Portrayed by: Samantha BoscarinoThe girl whom Spencer was cheating on Teddy with. Skyler and Teddy became friends afterward, then she became PJ's girlfriend.
- The Ditz: She makes PJ look a genius by comparison.
- The Brainless Beauty
- Heterosexual Life-Partners: With Teddy—she sometimes took this role when Ivy is not around.
- Official Couple: With PJ.
Mary Lou Wentz
Portrayed by: Ellia EnglishIvy's mother.
Portrayed by: Cyrina FialloFriend of Teddy's since the episode "T-Wrecks."