List of Arthur characters

Children

• Arthur Timothy Read is an eight-year-old aardvark who attends third grade at Lakewood Elementary School in Elwood City. He has two younger sisters, D.W. and Kate, and a dog named Pal. He plays the piano, wears a yellow sweater with a white collared shirt underneath, blue jeans, and round brown glasses. He is shown to love Bionic Bunny, Dark Bunny, comics and Love Ducks.
• ' is Arthur's four-year-old little sister,, a preschooler who is also the older sister of Kate. She is the middle child in the Read family. Like the rest of her family, D.W. is an anthropomorphic aardvark; she has light brown, slightly curled/waved hair in the form of a bob cut, as well as bangs.
• ' is Arthur's and D.W.'s baby sister. She can communicate with animals such as Pal, Mei-Lin Barnes, Killer, Toady, Mr. Toad, Amigo, Nemo, and Pepe the Flea. As she grows up, she loses communication with some of these characters. However, she comes to understand her family's speech better.
• ' is Arthur's best friend. He is a white rabbit who wears a turquoise long-sleeve polo shirt and jeans. He loves eating and keeps expired food in his room and school desk. He has asthma, is quite obsessed with aliens, loves telling jokes, is an amateur detective, practices gardening, and plays the tuba. He is an only child whose parents divorced when he was a little kid. He created and celebrates a no-frills holiday called "Baxter Day" with his mother. His father travels the world as a pilot; Buster features his travels with his father on the spin-off series Postcards from Buster.
• ' is a monkey who usually has long red hair, which she usually wears in two braids adorned with purple bows that usually match her purple and white dress. She was firstly drawn with two front buck-teeth in the books and early episodes, though this was soon changed through time. She and her older brother, Chip, are the two children of Ed Crosswire, the owner of the used car dealership Crosswire Motors, and his wife, Millicent. Muffy is the quintessential daddy's girl, with Ed believing that his daughter can do no wrong and constantly buying expensive, trendy items such as cell phones and designer clothing.
• ' is a monkey who has short brown hair clipped with two yellow barrettes on both sides and usually wears blue jeans and a maroon sweater. She is a tomboy, and enjoys playing sports, horseback riding, playing the drums, and singing. Her family is Jewish and in some episodes is seen observing Yom Kippur, Hanukkah, and attending a cousin's Bar Mitzvah. Francine's best friend is Muffy, with both sharing the same middle name. In earlier seasons, Francine picked on Arthur—such as when he got glasses, and when his baby tooth would not come out. However, they became good friends afterwards. She has an older sister named Catherine.
• ' is a bear of Senegalese descent who usually wears a grey sweater. He is highly academic and well-educated in many subjects, especially science and math, and has an "A" grade average. His classmates call him "Brain" or, when referring to him in third-person, "The Brain". His family celebrates Kwanzaa and owns an ice cream parlor, where his classmates frequently visit after school and on weekends. He was held back in kindergarten for crying a lot and being afraid of swimming, but can be seen swimming in some episodes. He revealed that his uncle has Asperger's syndrome in "When Carl Met George".
• "Binky" Barnes is a bulldog who usually wears an orange shirt, blue jeans, and brown shoes. He is in third grade for the second time after failing and having to retake it. He plays the clarinet, catches butterflies, loves art, and enjoys ballet. In "Binky Goes Nuts", it is revealed that he has a severe allergy to peanuts. Binky has an adopted baby sister from China named Mei-Lin. He is a bully and a member of the Tough Customers, a group of thugs and bullies, but has a soft side and is close with Arthur and his friends. In the episode "Binky Barnes, Art Expert", he tries to help Arthur and Buster. In the episode "Big Horns George", he compliments George's guitar by saying, "Woah, nice guitar! Can I see?" and after returning the guitar, says he likes the chord George plays. Despite not being very good at school, in "Binky's A Game", he reads his assigned book and receives an A on the test.
• ' is a third-grader cat and one of Arthur's classmates at Lakewood Elementary School. She is usually depicted wearing a teal dress, a cream vest with red buttons, red high-top shoes with a lime green "slouch" socks, and curly orange hair bound up in pigtails by lime green scrunchies. She officially moved to Elwood City in the winter of her third-grade school year. Her father is a diplomat, so her family has lived in various spots around the world. Unlike Emily, Tommy, and Timmy, she traveled with her parents. She is also deeply interested in world culture and is skilled in martial arts. She practices karate and plays the saxophone. Sue Ellen was born as an only child and kept in touch with her brother-like pen pal, Tenzin Wangdu, in Tibet. She is very close to nature and becomes a vegetarian in Season 16.
• ' is a light brown dog and one of Arthur's classmates. She usually wears a purple long-sleeved blouse with yellow collars and cuffs, yellow pants, and a red ribbon on her head. Fern is usually a very timid and nervous girl, but when pushed far enough can be assertive enough to stand up for herself. She enjoys reading poetry and novels and is particularly interested in gothic and horror themes. She writes poems and stories, holds group poetry readings at the library, and is an amateur detective. Her close friend is George, as they both have similar personalities and sometimes act like detectives.
• ' is a moose of Norwegian and Swedish descent who wears an orange shirt with khaki pants and green sneakers. It is revealed in Season 6 that he has dyslexia. He is very adept at building and construction, as his father is a woodworker, and constantly wins school's creation contests. George likes to practice ventriloquism with his giraffe dummy “Wally” that his father gifted him one Christmas. Wally acts as his much more sassy, outgoing alter ego. George is usually a very timid and introverted boy, but as the series goes on, the others gradually accept him. Finally, in Season 20, he is appointed as Lakewood Elementary's hall monitor.
• ' is a poodle. In 2011, however, PBS said that she was a rat, but in 2013, Marc Brown confirmed that she is actually a poodle. She is a fourth grader who usually wears a blue dress with a white collar and a purple bow in her hair. She initially was characterized as something of a know-it-all, but that trait was toned down in following seasons. She is interested in yoga, fortune telling, and paranormal phenomena. She loves the fictional Henry Skreever books and has studied braille. Prunella struggled with hoarding, as outlined in the episode "Prunella the Packrat".
• are identical twin bear brothers who are four years old and routinely exasperate others with their destructive antics. Tommy wears a red scarf, and Timmy wears a blue scarf. They stay with their grandmother while their parents work overseas and travel around the world, giving them souvenirs and gifts. The twins torment D.W. and occasionally manipulate her into doing silly and unusual things that only get her into trouble, even though D.W. has acknowledged many times that they always lie.
• *Tommy: voiced by Jonathan Koensgen, Aaron Grunfeld, Tyler Brody-Stein, Madison Danielle, Ryan Tilson, Jake Roseman, Jake Sim, Devan Cohen, Benjamin Hum
• *Timmy: voiced by Ricky Mabe, Samuel Holden, Max Henry Wolf, Tyler Brody-Stein, Chris Lortie, Dakota Goyo, Jacob Ewaniuk, Samuel Faraci, Matthew Mucci
• ' is a white rabbit with blonde hair, wearing a pink dress before Season 6, and a blue dress since Season 6. She is D.W.'s best friend in preschool. She is an expert in gymnastics and is knowledgeable in French culture. She has a French nanny named Marie Hélène.
• Maria Pappas is a rabbit with brown hair in Mr. Ratburn's class. Her clothing usually consists of a striped shirt with a blue dress; Maria's original character design included glasses. Maria participates in many clubs and activities but never is the center of attention. She appears in many episodes in the background, except for "Francine Goes To War", in which Francine insults her a lot, and her breakout episode, "Maria Speaks", which reveals that she talks with a stutter when she is chosen to be the reporter for the school's news program. Her best friend is Jenna Morgan.
• ' is a gray cat who usually wears a pink dress with yellow buttons. She is one of Arthur's classmates, and really dislikes being the center of attention. She is lactose intolerant, plays badminton, helps coach soccer, and received an "Athlete of the Year" award from Michelle Kwan. In "Binky Goes Nuts", it is revealed that she has a milk allergy. Jenna is rather very shy, and in "Jenna's Bedtime Blues", she dreads an invitation to Muffy's slumber party due to her fear that her friends will discover that she has nocturnal enuresis.
• Alex Davidson is a gray rabbit usually wearing a tan collared sweater, long brown jeans, and blue and white sneakers. In the episode "Buster's Dino Dilemma", Alex wore a white shirt that had purple on it, purple shorts with green on it, long green socks, and red and white sneakers.
• is a rabbit with a brownish-tan complexion who speaks with a dominant southern accent and is native to New Orleans, Louisiana. She is Bud's older sister, and Madison and Gussie's younger sister, who first appeared in Season 16 in the episode "Based on a True Story". She is a new student at Lakewood Elementary School. Ladonna and her family end up moving to Oregon when her father Rufus is transferred there with the Corps of Engineers in "When Duty Calls". However, she still appears in later episodes that narratively predate "When Duty Calls".