Jellystone!
Genre	Comedy Slapstick Slice of life
Based on	Characters byHanna-Barbera
Developed by	C. H. Greenblatt
Voices of	Fajer Al-Kaisi Jeff Bergman Jim Conroy Bernardo de Paula Andrew Frankel Jakari Fraser Ron Funches C. H. Greenblatt Katie Grober Grace Helbig Georgie Kidder Thomas Lennon Jenny Lorenzo Ulka Simone Mohanty Lesley Nicol Angelique Perrin Oscar Reyez Dana Snyder Niccole Thurman Paul F. Tompkins
Theme music composer	Ego Plum
Composer	Ego Plum
Country of origin	United States
Original language	English
No. of seasons	3
No. of episodes	77(list of episodes)
Production
Executive producers	C. H. Greenblatt Sam Register
Producer	Adam Middleton
Editor	Brant Duncan
Running time	11–22 minutes
Production company	Warner Bros. Animation
Original release
Network	HBO Max Cartoon Network
Release	July 29, 2021 (2021-07-29) – March 6, 2025 (2025-03-06)[1]

Jellystone! is an Americananimatedcomedy television series developed byC. H. Greenblatt for the streaming serviceHBO Max. Produced byWarner Bros. Animation, the show features and centers around oddly reimagined versions of various characters byHanna-Barbera, who live together in the fictional town of Jellystone.^[2] The show premiered on July 29, 2021, and ended on March 6, 2025, after three seasons consisting of77 episodes.^[3]

Having been a fan of Hanna-Barbera content, Greenblatt began developing onJellystone! according to him in January 2020, withUnikitty! director Careen Ingle and formerHarvey Beaks writer and storyboard artist Hannah Ayoubi. During production, he and his crew decided to have every single character exist in a single town together, changing some of their core traits to make them more likeable while adapting to modern audiences, instead of recreating their past adventures. The show is the first series to feature many of Hanna-Barbera's trademark characters (such asYogi Bear andHuckleberry Hound) sinceYo Yogi! (1991), as well as the first production since the closure of the Hanna-Barbera studios, and also the first television series featuring them without the respective studios' founders,William Hanna andJoseph Barbera, who died in 2001 and 2006, respectively.

The first season consisted of 21 episodes, with most episodes combined in pairs, but was produced as separate 11-minute episodes,^[4] including the Halloween episode "Spell Book".^[5] The second season was released on March 17, 2022.^[6] On March 2, 2022, it was announced that it was renewed for an additional 40 episodes, though it was eventually cut down to 37 episodes.^[7] There is also a 22-minute special that featuresCartoon Network characters called "Crisis on Infinite Mirths" and it also serves as the series finale in the production order.^[8][9] The first half of season three was released on Max on February 22, 2024.^[10] The second half of season 3 was released on March 6, 2025.^[11]

The series is a reimagined take on the legendary Hanna-Barbera brand, focusing on a modernized ensemble of its characters as they live, work, and play together but have to solve the problems they have.

All of them have specific roles in the community.Huckleberry Hound is the Mayor of Jellystone,Yogi Bear is a surgeon,Cindy Bear is a genius inventor,Doggie Daddy is a lighthouse keeper who is overprotective towards his daughterAugie Doggie,Jabberjaw andLoopy De Loop work inMagilla Gorilla's haberdashery called "Magilla's",Top Cat and the Hoagy's Alley cats continue with their scam activities,El Kabong doubles as a teacher and superhero,Shazzan is a ticket seller at Jellystone Theatre and does various vendor jobs, andThe Banana Splits are cartoonish criminals.^[3][12]

The episode "Sweet Dreams" claims that Jellystone is nestled between Lake Jellystone (no longer anecological disaster since 2019) and New Bedrock according to Mayor Huckleberry Hound's story to Augie Doggie in the style of a tourism commercial. In addition, Mayor Huckleberry Hound's description for Jellystone has him advising any visitors to ignore the sign that says "Do not enter by order of the government".

Season three reveals that New Bedrock is a rival town of Jellystone that is run by MayorDick Dastardly andMuttley and hasThe Really Rottens as notable citizens.

During the opening sequence, a gag will occur during the citizens' marching that will knock down some buildings like dominoes and cause everyone to run. The following gags have occurred:

• The spaceship of Bleep fromJosie and the Pussycats in Outer Space crashing into a building (seen in episodes 1, 5, 9, 13b, 14a, 17b, and 18a).
• Mildew Wolf tripping over a fire hydrant causing a torrent of water to hit a building as he runs (seen in episodes 2, 6, 10, 14b, 15a, 18b and 19a).
• Grape Ape accidentally knocking down a building (seen in episodes 3, 7, 11b, 12a, 15b, 16a, 19b and 20a).
• Speed Buggy accidentally backing into a building before driving off (seen in episodes 4, 8, 11a, 12b, 13a, 16b, 17a and 20b).
• Undercover Elephant,Snooper and Blabber, andInch High, Private Eye look for a clue, but Inch High stops as Snooper and Blabber bump into him and Undercover Elephant bumps into them enough to accidentally knock down a building (seen in episodes 21, 23a, 23b, 29a, 29b).
• Tubb tries to eat a hotdog, but accidentally knocks down a building as he starts to run (seen in episodes 22a, 22b, 26a, 26b).
• Dick Dastardly andMuttley knock down a building (seen in episodes 24a, 24b, 27a, 27b).
• Space Ghost's Phantom Cruiser crashing into a building as Space Ghost turns invisible (seen in episodes 25a, 25b, 28a, 28b).

In contrast with previous Hanna-Barbera media, some of the established male characters are now female in the series for the sake of gender balance; these include Augie Doggie, Jabberjaw, half of Top Cat's gang, Snooper, Squiddly Diddly, and Loopy De Loop.

Production on the series according to Greenblatt began in January 2020, withUnikitty! director Careen Ingle and formerHarvey Beaks writer and storyboard artist Hannah Ayoubi. According to Greenblatt's Tumblr, this show has been in early development for at least a year and a half. Greenblatt serves as executive producer alongsideHi Hi Puffy AmiYumi andThe Looney Tunes Show creator andWarner Bros. Animation,Cartoon Network Studios, andHanna-Barbera Studios Europe presidentSam Register.

Greenblatt was a fan ofHanna-Barbera content as a child, and gained a deep respect for the brand from there, believing that its expansive array of characters is what really made it work. While working on the series, he and his crew decided to have every single character exist in a single town together, changing some of their core traits to make them more likeable while adapting to modern audiences, instead of recreating their past adventures. They also managed to weave in the action-based characters, such asJonny Quest andShazzan, whereas many of the obscure ones, ranging fromthe Biskitts toYankee Doodle Pigeon, were reduced to cameos.

In a July interview withAnimation Magazine during the series development, Greenblatt stated that they had just outsourced to their animation departments and that the show could debut in 2021.^[13]

Jeff Bergman said that he was voicing Yogi Bear amongst others for the series.^[14]

The show'sHBO Max premiere, July 29, 2021, was announced, as well as the rest of the voice cast.^[3]

Unlike Greenblatt's other two shows, which utilized traditional hand-drawn animation,Jellystone! was animated withAdobe Animate by Cheeky Little Media in New South Wales, Australia and Snipple Animation in Quezon City, the Philippines.Ben Gruber, who co-createdSuperjail! forAdult Swim, is the show's story editor.

Greenblatt called the series a "love letter" in an interview withGreg Ehrbar onJerry Beck's animationscoop.com but "not a nostalgia show", though he had filled the episodes with classic cameos. He did not see the series as a replacement for the original shows and characters, but hoped that the entire Hanna-Barbera library might someday become available easily.^[4] Greenblatt also compared the overall vibe of the show toseason five ofThe Simpsons, the point where that series transitioned from a domestic sitcom to a wackyensemble cast-based show.

Greenblatt has stated that the series took heavy inspiration from places outside ofHanna-Barbera, such asWalter Lantz Productions' Hickory, Dickory inspiring Pixie and Dixie's portrayals in the HBO Max animated series, Blue Sky Studios' Ice Age Franchise' Sid, and various other inspirations.

Jellystone! premiered in the United States on July 29, 2021, onHBO Max.^[3]

It premiered later in 2021 in other countries:

InCanada, the series premiered on October 10 onTeletoon,^[15][16] as well as being shown for American broadcast onCartoon Network on September 4. The series became available to purchase on Digital storefronts such asiTunes andVudu^[17] the day after. The series premiered in theUnited Kingdom onCartoon Network on November 1.^[18] InBrazil andLatin America, the series premiered on December 10, onCartoon Network and HBO Max.

Wikiquote has quotations related toJellystone!.

• Jellystone atIMDb

• 2020s American animated comedy television series
• 2020s American children's comedy television series
• 2021 American animated television series debuts
• 2025 American television series endings
• 2025 animated television series endings
• American animated television series reboots
• American animated television spinoffs
• American children's animated comedy television series
• American flash animated television series
• Animated television series about animals
• Captain Caveman and the Teen Angels
• Cartoon Network original programming
• Children's television series about talking animals
• Animated crossover television series
• American English-language television shows
• HBO Max original programming
• Huckleberry Hound television series
• Jonny Quest
• Television series by Warner Bros. Animation
• Television series created by C. H. Greenblatt
• The Banana Splits
• Top Cat
• Yogi Bear television series

• Articles with short description
• Short description matches Wikidata
• Use mdy dates from March 2025