Main • Harvey (voiced by
Max Charles) is a kindhearted, mild-mannered 10-year-old anthropomorphic bird with troubles coming out of his comfort zone. • Fee (voiced by Angelina Wahler) is Harvey's best friend and Foo's twin sister – She is a 10-year-old imp. She is protective of those she loves and tries to be the best sister she can be. • Foo (voiced by
Jackson Brundage and Tom Robinson) is Harvey's other best friend, Fee's twin brother, and 10-year-old imp. He and his sister appear to be homeless, spending every night in a tree and taking care of themselves. • Michelle Beaks (voiced by
Kari Wahlgren) – The Beaks' baby daughter, whom Irving often carried around in season 1 while she was still an egg, though Harvey treated her as a baby sister even then. She hatched in episode "The New Bugaboo", demonstrating a mischievous, rambunctious, and trouble-making personality opposite to Harvey's. • Miriam Beaks (voiced by
Kerri Kenney-Silver) is Harvey's mother. She works as a librarian, but was notorious in her youth for her wild, partying, and rebellious nature. • Irving Beaks (voiced by
Scott Adsit in the series and
Chris Parnell in the pilot) is Harvey's bespectacled father. He is very shy and sensitive, preferring to remain at home, where he can take care of the kids.
Recurring ; Children • Dade (voiced by
C. H. Greenblatt) is a chubby-cheeked
rabbit with an abhorrence for Fee and Foo's antics – As Harvey's closest friend before Harvey met Fee and Foo, Dade is very extremely obsessed with Harvey and often expresses a conservative attitude. He is the oldest of his many brothers and sisters. • Claire (voiced by Nicole Wedel) is a timid
fox with glasses, has a crush on Foo, and likes to draw anime-inspired art featuring herself with Foo. She has an older sister who is never seen, and outdoes Claire in everything. Because of this, Claire's mother constantly pressures her to be as successful as her sister, and it stresses her out. • Princess Roberts (voiced by Andres Salaff) is an obnoxious
owl who wears a pink dress and a tiara – She is bad-tempered, selfish and extremely spoiled, believing herself to be the most perfect person in the world. Her father is Doctor Roberts, who constantly showers her with praise and gifts, but otherwise pays very little attention to her. Her mother died before the events of the series. • "Technobear" Snapper (voiced by Mason Vaughn) is a street-smart
brown bear in red
swim briefs – as his nickname suggests, he is a fan of
techno music, who enjoys partying at nightclubs and trying to impress women. "Terrybear" - as is revealed in an episode of the same name - is his real name; he is adopted by a pair of turtles. • Kratz (voiced by Matthew Zhang) is a depressed and neurotic
skunk – He wears brown pants pulled up to his waist and seems to have terrible luck, and sprays gas when he is scared or nervous. He has secret talent for drawing that surprises the characters in the show. • Rooter Wellington (voiced by Laz Meiman in season 1 and Addie Chandler in season 2) is a strong and tough
wild boar, with a large
mohawk and an Australian accent. Rooter has much experience in surviving in the wild, and prefers to do what is most challenging and refreshing. His father is a mailman and dedicated
survivalist. • Piri Piri (voiced by Madeleine Curry) is a yellow bird, and Claire's best friend. She is an extremely idealistic artist and daydreamer who gets her inspirations from her dreams and sees the good in everything. She is revealed to have a crush on Harvey in the episode "Secret Gordon". Her mother is a fortune teller named Hanzi. • Mikey (voiced by Nicholas Sumida) is a soft-voiced
frog, a friend of Harvey, who wears headphones. • Kathy (also voiced by Nicholas Sumida) is a brown-furred
capybara who wears a pink bow, is very shy, and has a fondness for leaves. She has a Web Video Channel where she shares her love of leaves with others. ; Adults • Doctor Roberts (voiced by
Matt Berry in "The Spitting Tree" and "Princess is Better Than You" and
Jeff Bennett in all other appearances) is an owl who is Princess' friendly but eccentric father, as well as one of Irving's friends. He has a weird obsession with
healing crystals, and in his free time, he likes to meditate. He has a very high opinion of his daughter, yet rarely spends time with her. • The Spirit of Wetbark Lake (voiced by
Dwight Schultz) is an enormous, blue, snake-like water spirit that lives in Wetbark Lake, where he tries to keep the lake a nice place to have fun and has no tolerance for any bad behavior. He is promoted to an ocean spirit in season 2's "Ocean Promotion", forcing him to leave Littlebark Grove for the sea, and a different lake spirit replaces him for the remainder of the series. • Jeremy (voiced by C. H. Greenblatt) is a big, furry mushroom-like creature with a large nose and a squeaky voice who works as a bartender at a nightclub. As a close friend of the Beaks family, he often babysits Harvey and Michelle:. • Tara (voiced by
Ana Gasteyer) is a giant
spider hairdresser who works in a hair salon. She is a friend of Miriam with over three hundred children. She is over-pressured and is a very busy woman. • Les Squirrels (voiced by
André Sogliuzzo (Jean Luc) and
C. H. Greenblatt (other squirrels)) are a group of six French squirrels who serve as recurring antagonists (or antiheroes on some occasions) for Harvey and his friends. They are made of Jean Luc, Jean Claude, Sean Jea, Bili Jean, Long Jean, and Papa Jean. With the exception of Jean Luc, all of them speak in a mixture of squirrel chattering and French-like nonsense. They are often angry and seek justice for anything they have happened to them. • Officer Fredd (voiced by
Michael-Leon Wooley) is a large green caterpillar who enforces the law around Littlebark Grove. He is extremely harsh towards the troublemakers and keeps trouble at bay with his special taser gloves, shouting out "bu-zap" every time he electrocutes lawbreakers. His appearance, name, and mannerisms are based on
Judge Dredd. • Curtis "The Inspiration" (voiced by
Mikey Kelley) and Janet "Pooker" Snapper (voiced by Rachel Butera) are Technobear's adoptive parents. They are turtles who both speak with New Jersey accents. Their names are references to
Michael Sorrentino and
Nicole Polizzi's nicknames from
Jersey Shore. Janet is also a friend of Miriam. • Aiden (voiced by
Jim O'Heir) and Miley (voiced by
Catherine O'Hara) are Harvey's maternal grandparents. Aiden is a retired police officer often seen with a camera, which he uses to film family events and making puns. Miley is a retired judge and adores her grandson very dearly. • Roland Beaks (voiced by
Blake Clark) is Harvey's paternal grandfather. In contrast to his son Irving and grandson, he is very quiet and prefers not to show emotion. He wears an eyepatch over his right eye. He learns to open up more because of his son and his grandson. • Blister (voiced by
Ken Jenkins) was an agoraphobic elderly mole who lived in a nursing home. He was a mischievous one, like Fee. Fee befriended him in the episode "The Blister". He passes away in the episode "Later Dingus". He is also Randl's long-lost father. • Bada (voiced by C. H. Greenblatt) and Grada (voiced by
Maria Bamford) are Fee and Foo's parents which they are imps who appeared in the final episode "The End and the Beginning". They have a personality similar to Foo's, and they have been committed to finding their lost children for maybe a decade until finding them, which Fee appreciates very much. ==Production==