This is a list of characters from the TV series, Curious George.
- Curious George (aka Baby Bear the Monkey): A tailless monkey, is the show's title character. As his name implies, he is very curious, a trait which helps him to learn, but which also often gets him into trouble. He is used as the "teachable" character in the show, and he is the one to whom new concepts are explained in detail by the other characters; the viewers learn the new concept along with George. He is voiced by Frank Welker.
- Hundley: The Doorman's dachshund. He is a very neat dog who wants his lobby clean, tidy, and dignified. He does not care for George, as the lobby frequently becomes messy as a result of George's activities. Hundley is allergic to some cats, including Professor Wiseman's kitten Lucky, but not to Chef Pisghetti's cat Gnocchi. He is voiced by Bill Chott in the first season and Lex Lang in the second and current season.
- Compass: The Doorman's homing pigeon, who has a terrible sense of direction. Because of this, he is referred to as an "Almost-Homing Pigeon". Rob Paulsen provides Compass' cooing.
- Jumpy Squirrel: George's squirrel friend who likes to stay in trees, but often gets caught up in George's adventures in the country. He does not like surprises. A recurring joke in the series is when Jumpy gets caught in a situation with George and the narrator says "At that moment Jumpy remembered why he always stayed in trees." He is voiced by Jim Cummings.
- Gnocchi: Chef Pisghetti's pet cat, who is often caught up in George's adventures. She frequently removes or loses her blue bow, which Chef Pisghetti replaces. She is voiced by Debi Derryberry.
- Charkie: A black cocker spaniel. She is very bouncy and playful and she often escapes from home. She is voiced by Rob Paulsen.
- Bill's Bunnies: There are seven baby bunnies that belong to Bill. Their names are Fuzzy, Whitey, Brownie, Spotty, Black Ears, Cotton Tail, and Herbert Nenninger. He also owns their mother (Ma Rabbit), whose burrowing abilities are important in several episodes. They are all voiced by Frank Welker. (In Curious George's Bunny Hunt, Herbert Nenninger is a brownish-tannish color. In Bee is for Bear, he is white. However in Curious George's Bunny Hunt, the only white bunny is Whitey.)
- Narrator: First season narrated by William H. Macy. Seasons Two, Three and Four narrated by Rino Romano.
- The Man with the Yellow Hat: The man who first befriended George and also acts as his primary teacher and mentor. He does not wear his hat at home but wears it when going outside. Living with George, the Man is clumsy and often has bad luck and makes mistakes (such as constantly losing his hat, being in the wrong place at the wrong time, tasting something terrible the hard way with a sour reaction, etc.). He is also absent minded and has a childish attitude or behaves immaturely at times. His catchphrase when leaving George alone is often "Be a good little monkey." Or sometimes his catchphrase is "Come on. Can't be late." when the Man leaves with George. Anytime George causes trouble or makes a mess, he almost never gets upset with George (after all George is a monkey and the fact of being a messy curious animal can't be corrected). It is unclear what he does for a living, but in Curious George and the Invisible Sound he has been asked to survey animals around the country house, and in The Fully Automatic Monkey Fun Hat, Dr. Wiseman has asked him to give a speech about the scientific method. He also is the leader of a troop of the Sprouts, which George and Bill belong to. At times Bill's instructions and smart knowledge often gets on his nerves. The man makes a couple of references to "going to work", however, we never discover what this pertains to. He owns a country house that has been in his family since his childhood, and also lives in a spacious, high income apartment building in the city. The man primarily drives a yellow Volkswagen convertible car as his main transportation to the country, however, he typically walks when staying in the apartment. The Man's hobbies include playing the tuba, bowling, sketching and painting pictures, and long distance running. He also paints in the style of the H.A. Rey drawings. He won an award for being the first to climb and map what became known as Yellow Hat Mountain and placed seventeenth in a marathon. No mention of his parents is made, other than an occasional reference to his mother in a couple episodes. He is voiced by Jeff Bennett.
- The Doorman: The doorman for the apartment building that George and the Man with the Yellow Hat live in. He is Hundley's owner. When on duty, he wears red clothes like a British Sentry Guard but with a red cap. When he went camping with George and Hundley, he wore an outfit somewhat similar to that of a Canadian Mountie. He is very friendly and always loves to see George. He keeps a coop of homing pigeons on the roof of the building. Like the Man with the Yellow Hat, the Doorman's name is never mentioned. He is voiced by Bill Chott in the first season and Lex Lang in the second and current season.
- Professor Wiseman: A scientist friend of George and the Man. In different episodes she is seen to be a rocket scientist and to work at a local museum. Her name is a play on the words wise man. She is voiced by Rolonda Watts.
- Chef Pisghetti and Netti: An Italian chef and his wife who own a restaurant in the city. George frequently visits him and often helps him out with errands and chores around the restaurant, with Pisghetti often rewarding him with a tasty dish or dessert as payment. The Chef has always wanted to cook and is always trying strange new recipes using the fresh vegetables he grows in a rooftop garden. His name is a reference to the way some toddlers pronounce the word "spaghetti." Often, when things seem to go wrong, the Chef's catchphrase is "I'm Ruined!". Often he gets emotional if things go wrong. He affectionately refers to George as "Georgio". The chef's voice is provided by Jim Cummings and Netti's is by Susan Silo.
- The Renkins: A couple who own a farm near the country house. They have horses, cows, pigs, chickens, and bees, all of which provide sources for adventures. George also sometimes borrows materials from them, including a water pump and scrap lumber. Mr. Renkins is voiced by Jeff Bennett. Mrs. Renkins is voiced by Kath Soucie.
- Allie: The five-year-old granddaughter of the Renkins, who is first introduced in George Meets Allie-Whoops! where she and George become fast friends. Allie is a very perky and spunky little girl who is about George's height and is as adventurous and curious as he; making her the perfect playmate for him. She is a joyful ball of energy whose grandmother even calls a “spark plug.” When she first meets George she is excited and eager to learn the ways of a monkey. Her curiosity often leads George and her friends on a wild goose chase. Voiced by Lara Jill Miller.
- Bill: George's neighbor from across the street in the country. He owns a hutch of bunnies and has a paper route. He also likes to fly kites, but seems to be an acrophobic. His catchphrase is, "There's a proper way to ...." Bill apparently does not realize that George is a monkey and often refers to him as a "city kid" to explain the odd things George does. While in the original H.A. Ray books Bill is depicted as a caucasian character his appearance is modified in the series to appear possibly Latin or Native American. Voiced by Annie Mumolo.
- Steve and Betsy: Two children from George's neighborhood in the city who are brother and sister. They live with their Aunt Margaret and their dog, Charkie, who they are always chasing. Steve likes video games and is always "going for a record" of some kind. He is the older child of the pair, and is always getting ideas about how to solve a problem. He often tells George, "I'm in fifth grade. This has to work." In the episode Piñata Vision, their Aunt called him by his full name, Steven. Betsy is more responsible and caring, and is often pulling a red wagon. She is frequently annoyed at Steve, and has to fix his mistakes. She is in third grade. Steve is voiced by Elizabeth Daily and Betsy is voiced by Grey DeLisle. Steve is 10 years old and Betsy is 8 years old.
- Marco: A Mexican boy who lives in The Puerto Del Sol district, a Mexican neighborhood in the city, he and his family play Spanish music anywhere.
- Mr. Glass: A man who owns a building known as "The Glass Palace" and hires window washers in the City. George uncovers a catastrophic flaw in a building which Mr. Glass was constructing. He likes things to be unique ever since George painted a jungle-themed room in The Glass Palace. He almost scolds George for doing something wrong when he painted a painting which looks like its damaged counterpart. He is very wealthy. Voiced by Rob Paulsen.
- Mr. Zoobel: George's upstairs neighbor in the City. Mr. Zoobel is a painter in a modern (non-representational) style who sometimes uses stamps shaped like animal feet. He has a de-scented pet skunk named Geoffrey, a gopher snake named Bruno, and two mice named Benjy and Willy. When he first moved in, he used the stamps so much it made a loud stomping noise in George's apartment downstairs making George think he lived with an elephant. He is voiced by Jim Cummings.
- Mr. and Mrs. Quint: Mr. Quint is one of George's country friends, Clint Quint is an avid fisherman and one of a set of quintuplets. His siblings are a sister who is a track runner (Sprint), a brother who is a train-station master (Flint), a brother who is a police officer (Wint), and a sister who prints money (Mint). All male Quints are voiced by Jim Cummings. All female Quints are voiced by Candi Milo.
- Benjy & Willy: Mr. Zoobel's pet mice who are respectively black & white. They feel cooped up in their small terrarium and long for freedom. They are afraid of Zoobel's gopher snake Bruno because snakes eat mice. Their squeaks are by Frank Welker.
- Bruno: Mr. Zoobel's pet gopher snake who only eats once a day. He sheds his skin 3 times a year. Like many snakes, he likes sunshine. He has no voice.
- Doxie: Doxie is another dachshund who was introduced in Season 2. She is almost identical to Hundley in appearance, except that she wears a red collar; however, unlike Hundley, Doxie is bouncy and playful and is voiced by Frank Welker.
- Fluffy: In the episode, Monkey Fever, Fluffy was a cat who belonged to Betsy's friend and had six kittens. Betsy brought one of the kittens over to George's apartment to show him. Voiced by Frank Welker.
- Geoffrey: Mr. Zoobel's pet skunk. He is de-scented and domesticated.
- Leslie: Leslie is a cow, owned by the Renkins. She's a great friend of George. Voiced by Rob Paulsen.
- Little Mike: Mike is a pig owned by the Renkins. He first appears in Ski Monkey, when he is stranded in the snow. He also appears in Old McGeorgie had a Farm.
- Lucky: Lucky is Professor Wiseman's kitten, introduced in season 2. She likes Hundley, although Hundley is allergic to her. Lucky is voiced by Debi Derryberry.
- Oscar: A white pig owned by the Renkins who won the "prettiest pig" contest in (Old McGeorgie had a Farm).
- Sue Berm: An elephant who works at the zoo as a painter. Every one of her paintings is unique. She signs a painting by marking it with her trunk with green paint when she is done.
- Tracy: Tracy is a hen, owned by the Renkins. She has five (Up the River) or six (Old McGeorgie had a Farm and A Bridge to Farm) chicks who follow her around everywhere. The chicks also like George and often follow him around too. The chicks are curious just like George and are often wandering away from Tracy. The youngest of her chicks is named Al. Voiced by Rob Paulsen in the first season and Frank Welker in the second.
- Ada & Luke: A couple who own a general store in the country. The store gives a free pickle to anyone who comes and visits. Ada is voiced by Kath Soucie and Luke is voiced by Rob Paulsen.
- Andie, Stig, & Stew: Firefighter members of Rescue Squad 86 who play in a band with the Man with the Yellow Hat. They are confused as to why they never get "normal" calls. Andie is voiced by Elizabeth Daily, Stig is voiced by Rob Paulsen in season 1 and Jim Cummings in season 2 and Stew is voiced by Kevin Michael Richardson.
- Calhoun The Gopher Getter: A gopher exterminator in the country who is nerdy and has buck teeth. He was hired by Mr. Renkins to eliminate a gopher family that was taking his grapes. After Calhoun resorted to bulldoze the Renkins' garden at a last attempt to catch the gophers, he was fired by Mr. Renkins. Oddly enough he looks similar to a gopher himself. He is voiced by Rob Paulsen.
- Cayley: Cayley owns a candy counter in Mabel's department store (a parody of Macy's, and likely a portmanteau name referencing both Macy's and its erstwhile competitor Gimbel's) in New York City. She is voiced by Kath Soucie.
- Dorothy: Dorothy is the Doorman's sister. Voiced by Grey DeLisle.
- Dr. Baker: Dr. Baker is The Man with the Yellow Hat's doctor. He also goes to a hospital to help people who are sick and hurt. He sometimes uses bandage straps to help someone who has a sprain or if someone put their hands in thorns. He is voiced by Kevin Michael Richardson.
- Dr. Ghesund: Another doctor who works in the same office as Dr. Baker. His name is similar to the German word for "bless you", "Gesundheit." Voiced by Dee Bradley Baker.
- Dr. Raj Desai: A scientist that dug up all of the city Museum's dinosaur skeletons. He is very protective of his discoveries and only lets other scientists handle them. He is very forgetful though and his wife often tells him he'd forget his head if it weren't attached. His newest donated project to the museum had the incorrect skull; the correct one was placed on the older skeleton next to it.
- Grocer: He owns the grocery store near George's apartment building in the city, and has an adult son who helps him run the store. Voiced by Jim Cummings.
- Gwen & Sisly: The respectively White & Black women who work at the city dog pound.
- Mr. (Ken) Auger: A plumber always hired by the Man In The Yellow Hat to fix household plumbing problems. He always lets George watch him do his job. He is distressed at the fact that people never just call him over for a friendly visit.
- Mrs. Dulson: The eccentric owner of Dulson's Toy Store in the city. She and her husband first appeared in Roller Monkey.
- Mr. Reloj: Mr. Reloj owns a clock store and knows everything all about them. He walks very fast, but is forever late. His name is the Spanish word for clock. He is voiced by Rob Paulsen.
- Mrs. Donuts: Mrs. Donuts is an owner of a donut store in the city. Voiced by Candi Milo.
- Mr. Ruffweek: A blimp pilot who flies the Ruffweek Blimp. The blimp flies over 7 N. Avenue once in the morning, and again at sunset. His name is a play on the words "Rough Week", perhaps referring to his tight schedule or a play on the Goodyear Blimp. Voiced by Rob Paulsen.
- Professor Alvin Einstein: A rocket scientist who works with Professor Wiseman and Professor Anthony Pizza. He is not related to the famous scientist Albert Einstein. He often bickers with Professor Pizza. He is voiced by Jim Cummings.
- Professor Anthony Pizza: One of the scientists who works with Professor Alvin Einstein and Professor Wiseman. He often bickers with Professor Einstein. Voiced by Dee Bradley Baker.
- Rodney: An employee of a market in the city. (This market is not the grocery store which George normally visits; it is on a nearby street, and serves as that store's main competitor.) Rodney lost the annual Bag-A-Lympics competition due to his overconfidence And The Rival Of George. Voiced by Jim Cummings.
- Uncle Tam: The Man With The Yellow Hat's uncle, who dresses in green clothes with a white shirt and lives in a castle in Scotland with a golf course. In the episode Castle Keep, he was going to be evicted from his castle because he could no longer find the castle's deed, which meant he would have to pay 400 years of back taxes. Voiced by Dee Bradley Baker.
- Zucchinis: A family of three acrobats renowned for their balance. They are friends of Chef Pisghetti. Voiced by Dee Bradley Baker, Candi Milo and Kath Soucie.
- Dog Trainer Man: A man that is involved with dog shows and competitions. Mainly seen in Curious George, Dog Counter and Charkie Goes To School.