Happy Tree Friends

• Cuddles is a yellow male rabbit with pink bunny slippers, a white fluffy hair tuft and cotton tail. His ears move to match how he feels. Cuddles is one of the primary characters in the series. Like Giggles, Toothy and Lumpy, he appears in most of the episodes. He is voiced by Kenn Navarro.
• Giggles is a female light pink chipmunk who wears a big red bow on her head. She has been voiced by three actresses since her debut: Dana Belben (Season 1 - Season 2), Ellen Connell (Season 2 - Season 3, Season 3- present), and Lori Jee (Season 3).
• Lumpy is a light sky blue moose with bad teeth, distorted eyes and mismatched antlers. He was first voiced by Rhode Montijo (Season 1 - Season 2) and is currently voiced by David Winn (Season 2-Season 4).
• Toothy is a lavender beaver with very large, gapped teeth), and freckles. He is voiced by Warren Graff.
• Nutty is a green squirrel with one yellow diamond-shaped marking on his head and a large, curled-up tail that wags when he is excited. He has an addiction for candy and sugar. He is voiced by Michael "Lippy" Lipman.
• Flippy is a male green bear. He wears a camo jacket, dog tags around his neck, and a green beret with a checkered crest on his head. He is a veteran soldier in the army. He is voiced by Kenn Navarro, while his evil self Fliqpy is voiced by Aubrey Ankrum. Ankrum also provided Flippy's normal voice up until 2005.
• Flaky is a light crimson-colored porcupine whose quills are full of white flakes of dandruff. She is voiced by Nica Lorber.
• Handy is an orange beaver without hands, and the stumps on the ends of his arms are wrapped with bandages. He is voiced by Warren Graff.
• Petunia is an indigo and dark blue skunk with a sky blue arrow marking on her forehead. She has been voiced by three actresses since her debut: Dana Belben (Season 1 - Season 2), Ellen Connell (Season 2 - Season 3, Season 3-Season 4), and Lori Jee (Season 3).
• Disco Bear is a light orange bear with an orange afro and sideburns. He is voiced by Peter Hermann.
• Mime is a purple male deer with pointed ears, and antlers who wears face makeup and a navy blue/dark purple and white, striped shirt. He never speaks and is a mime. His rare instances of audible noises are provided by Sarah Castelblanco.
• Splendid is a pale blue superhero flying squirrel with light blue gliding wings, a light blue/white oval marking on his torso, and a red mask around his head. He can fly, shoot laser beams from his eyes, has super strength, super speed, invulnerability, supersonic hearing, can turn back time, and can breathe ice. He was first voiced by Rhode Montijo (Season 1 - Season 2) and is currently voiced by David Winn (TV Series–Season 4).
• Russell is a turquoise sea otter with typical pirate accessories who enjoys fishing, sailing and eating seafood. He was first voiced by Jeff Biancalana (Season 1-Season 2) and is currently voiced by Francis Carr (TV Series-Season 4).
• The Mole is a blind dark pink mole with black sunglasses.
• Lifty & Shifty are two green kleptomaniac raccoon twin brothers who steal from the other Happy Tree Friends. Both were initially voiced by Mark Giambruno (Season 1-Season 2) and are currently portrayed by Kenn Navarro (TV Series-Season 4).
• Sniffles is a blue and gray anteater who is also a scientist. He is voiced by Liz Stuart.
• Pop & Cub are two tan father-and-son bears. Pop appears wearing a 50's robe and is always seen smoking a pipe while Cub wears a diaper and a beanie. Pop is voiced by Aubrey Ankrum; Cub has been voiced by three actresses since his debut: Dana Belben (2000 - 2005), Ellen Connell (2005 - 2009, 2011–present), and Lori Jee (2009 - 2011).
• Lammy is a lavender sheep with woolly white hair, tail fur and wears a woolly white sweater. She is voiced by Renée T. MacDonald.
• Cro-Marmot is a lime green caveman/marmot frozen in a block of ice who wears a leopard skin loincloth and holds a wooden club in his hand.
• Buddhist Monkey is a yellow Buddhist monk monkey who has appeared in three episodes, Enter the Garden, Books of Fury, and Three Courses of Death. His enemies, the Generic Tree Ninjas, are bears that try to destroy what he cherishes. He is voiced by Jeff Biancalana.

While working on Mondo Media, Rhode Montijo drew on a piece of scrap paper a character who would later become Shifty. He then drew on a spreadsheet poster a yellow rabbit that bore some resemblance to Cuddles and wrote "Resistance is futile" underneath it. Rhode hung the drawing up in his workstation so other people could see his idea, and eventually the idea was pitched to and accepted by the Mondo Media executives.[5] In 1999, Mondo gave Aubrey Ankrum, Rhode Montijo and Kenn Navarro a chance to do a short for them. They came up with a short named Banjo Frenzy, which featured a dinosaur (an earlier version of Lumpy) killing three woodland animals, a squirrel, a rabbit and a beaver (earlier versions of Giggles, Cuddles and Toothy) with a banjo. From there, Mondo gave them their own Internet series, which they named Happy Tree Friends.

After its internet debut in 1999, Happy Tree Friends became an unexpected success, getting over 15 million hits each month[6] and screenings at film festivals.[7]

Mondo Media CEO John Evershed attributes the success of the series to animator Kenn Navarro. "He had a clear vision for that show and he's just a brilliant animator. He has created something that is pretty universal. I envision kids watching Happy Tree Friends 20 or 30 years from now the same way that they watch Tom and Jerry now. So really it's Kenn Navarro."[8]

In 2014, after the episode "Dream Job" was released, Mondo Media announced plans to produce a feature film based on the series,[9][10][11] but in 2016, Kenn Navarro tweeted that he was unaware of work being done on a film, but that his team were "in talk to do more shorts". Later, when a fan asked Kenn Navarro about the film, he replied: ""a treatment that [I] and the writers did was all the work (that [I] know of) for the movie" [12][13]

In December 2016, Mondo Media released five all-new episodes for purchase online.[14] The episodes were bundled as a set named "Happy Tree Friends: Still Alive" and came with some additional bonus material such as background designs, animated storyboards, the animation process and a writer's session video. Upon purchase, the buyer was allowed to download the DRM free video files to their own computer. In January 2017 Kenn Navarro tweeted "As I understand, sales were ok but fell below what was expected."[15]

Fall Out Boy's 2007 music video for their song "The Carpal Tunnel of Love" was directed by Kenn Navarro and stars characters from the series. The band members also make a cameo as animated characters.[18]

A video game titled Happy Tree Friends: False Alarm was released on June 25, 2008. It was developed by Stainless Games and Sega for Xbox Live Arcade on the Xbox 360 and the PC.[19] There was also an iOS game titled Happy Tree Friends: Deadeye Derby released in 2014.

• Happy Tree Friends at Mondo Media