This article is about the fun and unique characters from two American animated TV shows: Secret Mountain Fort Awesome and its spin-off, Uncle Grandpa. Both shows were created by Peter Browngardt and produced by Cartoon Network Studios for Cartoon Network. Get ready to meet some truly unforgettable characters!

Secret Mountain Fort Awesome characters

Main Characters

Festro

Festro is one of the five main characters in Secret Mountain Fort Awesome. He's a purple, muscular creature with green eyes and two big tusks. He usually wears just briefs and sneakers.

Festro can be a bit wild, selfish, and doesn't always think about others. He loves to relax and party, and sometimes even punches himself in the face! He often takes advantage of his friends and avoids responsibility.

However, Festro also has good moments. He sometimes admits his mistakes and will fiercely protect his friends when they need him.

Fart

The Fart is another main character from Secret Mountain Fort Awesome. He's a very unique guy made out of, well, butts! He has a big butt on his head that moves when he talks, and other butts on his body. He wears a green belt with a golden heart buckle.

The Fart is the most caring and sensitive of his group, called the Disgustoids. He tries hard to understand humans and their ways, hoping to make them like Disgustoids. He's also the most logical, preferring to think things through instead of rushing into action.

He has cool abilities like being able to make his body as hard as a rock, changing his belt into underwear, super strength, and even shapeshifting!

Gweelok

Gweelok is one of the main characters in Secret Mountain Fort Awesome. He's a super smart, technical genius who looks like a slimy green ball of mucus. Paul Rugg provides his voice.

Gweelok is green and slimy with red pimples and small black hairs. He has big, squinted eyes with thick eyebrows and crooked yellow teeth. He has human-like arms with sharp claws and wears two metal gadget bracelets. He's the smartest one in the group.

Even though he's smart, Gweelok can be stubborn and not very social. He often prefers to handle things himself and keeps his feelings hidden. He can also get angry easily. When he's jealous or mad, he turns red, which can be a bit scary!

Slog

Slog is another main character from Secret Mountain Fort Awesome. He's a short creature covered in black fur with a large nose and sharp teeth. He usually wears a stained orange shirt. Steve Little is his voice actor.

Slog isn't the most educated, so his friends sometimes trick him. He often follows what Festro says, but sometimes he questions if it's the right thing to do. He even tries to get Festro to do good things. Slog is proud of being messy and not taking baths.

Despite not always being the smartest, Slog has moments of brilliance. For example, he knew that "3 + 3 =" was "6" even when Festro didn't listen. He also took charge once to help his friends get the old Festro back.

Slog is also very kind. While his friends worry about big things, Slog was concerned when another character, Dingle, was turned into a basketball. He also sometimes talks directly to the audience, reminding kids that he's a cartoon and they shouldn't play with fire.

Dingle

Dingle is one of the five main characters in Secret Mountain Fort Awesome. He's a small blue creature with a hunched back, long arms, and sharp teeth. He has big round eyes and messy black hair.

Dingle is usually calm, even though his voice sounds a bit wild. Like Fart, he can be the voice of reason for his friends. Dingle is smarter than he often gets credit for. He once gave a very thoughtful speech that made his friends cry. He also invented many things and won a Nobel Peace Prize in one day!

However, Dingle also has a mischievous and sometimes mean side. He once suggested making fake money to solve debt problems. Another time, he suggested a plan that Gweelok said sounded very illegal!

Uncle Grandpa characters

Main Characters

• Uncle Grandpa (voiced by Peter Browngardt) is a magical, shapeshifting human-like character. He's everyone's uncle and grandpa! He has a big rectangular head, a brown mustache, a pink nose, and a talking propeller hat. He wears a white T-shirt, rainbow suspenders, tube socks, and slippers. He looks a bit silly but is kind, fun-loving, and surprisingly good at helping people. His famous saying is "Good morning!"

• Mr. Gus (voiced by Kevin Michael Richardson) is a large, serious, green dinosaur. He's usually the most sensible one in the group. Mr. Gus used to be Uncle Grandpa's rival but became his friend and bodyguard. He stays calm even with his wild roommates, but he can get annoyed, especially by Pizza Steve. He's older and more mature than Uncle Grandpa. Mr. Gus loves his quiet bath and reading time at 9:00 PM. His catchphrase is "You're just sayin' that to get under my skin."

• Pizza Steve (voiced by Adam DeVine) is a slice of pepperoni pizza with sunglasses. He's part of Uncle Grandpa's crew. Pizza Steve is very vain and loves to brag about how cool he is, which often bothers Mr. Gus. He pretends to be super popular. Pizza Steve even has his own short cartoons where he exaggerates his abilities. He once claimed to be a black belt in Italian Karate, but he wore the belt over his eyes! His catchphrase is "I'm like a modern-day Thomas Einstein except a brazillion times better!"

• Giant Realistic Flying Tiger is a photographic cutout of a tiger that Uncle Grandpa rides. She's his pet and best friend. Tiger can fly and leaves a rainbow trail behind her. She also makes rainbow trails when she passes gas! Her personality is a mix of a teenage girl, a house cat, and a real tiger. Only parts of her face move to show her feelings, like in a stop-motion movie.

• Belly Bag (voiced by Eric Bauza) is Uncle Grandpa's talking red fanny pack and best friend. He carries all of Uncle Grandpa's important things, including a laser hammer named Samantha. Belly Bag's insides are full of strange objects and even different dimensions, like a castle where Frankenstein lives! He can walk and make hands appear from inside himself, even though he has no visible eyes. His catchphrase is "What's cookin', good-lookin'?"

Recurring Characters

Tiny Miracle

• Tiny Miracle (voiced by Tom Kenny) is Uncle Grandpa's imaginary robot grandson. He can perform "tiny miracles" with a series of silly moves. He sounds like an old 1980s microphone. Uncle Grandpa calls him his "trusty robot helper buddy." People can summon him by saying "tiny miracle" and what they want to happen. His catchphrase is "Did somebody say 'tiny miracle'?"

Beary Nice and Hot Dog Person

• Beary Nice (voiced by Audie Harrison) and Hot Dog Person (voiced by Eric Bauza) star in their own recurring cartoon segments called "New Experiences." Beary is a teddy bear with a red nose and a bow tie. Hot Dog Person is a hot dog with a face. Beary is always positive and excited to try new things, while Hot Dog Person is gloomy and reluctant because bad things always happen to him! Beary often gets so excited that he doesn't notice Hot Dog Person's troubles. Beary's catchphrase is "(blank) is beary nice. Oh wait, that's me!"

Charlie Burgers

• Charlie Burgers (voiced by Brian Posehn) is a talking dog who loves his ball! He's Uncle Grandpa's neighbor and friend. He's well-behaved and enjoys going on adventures with Uncle Grandpa and his friends. His catchphrase is "I love my ball!"

Santa Claus

• Santa Claus (voiced by Bob Joles) is the famous Christmas figure. It's revealed in a Christmas special that he is Uncle Grandpa's brother! They've had a difficult relationship since 1983.

Baby Frankie

• Baby Frankie (voiced by Mark Hamill) is a small version of Frankenstein's monster. He often tags along with Uncle Grandpa on adventures. He can't talk and only communicates through groans. He's usually seen sitting next to Uncle Grandpa in his chair.

Xarna the She-Warrior of the Apocalypse

• Xarna the She-Warrior of the Apocalypse (voiced by Eric Bauza) is a very muscular, tough cyborg girl. She's on a mission to get gas for her Mad Motorcycle. Her catchphrase is "I don't like your mouth." She's a funny take on famous warrior princesses.

Evil Wizard

• Evil Wizard (voiced by Rob Schrab) is a wizard who tries to make everyone's day terrible by embarrassing them. But his plans usually backfire and actually make people's lives better! His catchphrase is "Behold! I am Evil Wizard!"

Priscilla Jones

• Priscilla Jones, also known as Aunt Grandma (voiced by Lena Headey), is Uncle Grandpa's enemy. She has a British accent and wants revenge on him. She believes Uncle Grandpa ruined her science project by playing hacky sack instead of helping her, which made her get second place. She likes to solve children's problems with simple, practical solutions, which is the complete opposite of Uncle Grandpa's magical ways. Her catchphrase is "Beautiful Morning!"

Human Children and Adults

Belly Kid

• Belly Kid (voiced by Zachary Gordon) is a kid with a big belly. At first, he was embarrassed by it, but Uncle Grandpa taught him how great it is to have a big belly. He appeared in the episode "Belly Bros."

Caleb

• Caleb (voiced by Jonathan Adams) is a boy Uncle Grandpa takes out of a math test to fight the Evil Wizard in outer space. He appeared in "Tiger Trails."

Melvin

• Melvin (voiced by Jarid Root) is a spoiled kid who loves to play "Space Emperor." Uncle Grandpa accidentally sent him to a planet where he became the emperor. He learned what it was like to be a servant and learned his lesson. He loves dinner sandwiches and hates mayonnaise. His catchphrase is "I decide who does what!"

Eric

• Eric (voiced by Eric Bauza) is a kid who didn't have a nickname. Uncle Grandpa helped him become legendary to earn one. He became tall and muscular in the process. In the end, he got the nickname "Cupcake" because he loves cupcakes. He appeared in "Nickname."

Mary

• Mary (voiced by Pamela Adlon) is a nervous girl who failed her driver's test. Uncle Grandpa helped her pass by taking her on a special test. After she passed, Uncle Grandpa gave her her own "Freedom and Independence USA" truck! She appeared in "Driver's Test."

Dennis

• Dennis (voiced by Tom Kenny) is a kid who wanted to pass his teacher's tough class. But Uncle Grandpa ate his homework! So, Dennis and Uncle Grandpa went to Egypt to get a real pyramid for his project. Dennis appeared in "Uncle Grandpa Ate My Homework!"

Guillermo

• Guillermo (voiced by Eric Bauza) is a kid whose awesome new bike was crushed. When Uncle Grandpa and Belly Bag were away, Mr. Gus and Pizza Steve tried to help him by giving him a trashcan and calling it a "Magical Uncle Grandpa Bike." Guillermo appeared in "Uncle Grandpa for a Day."

Susie

• Susie (voiced by Grey DeLisle-Griffin) is a little girl who was afraid of the dark. She learned to overcome her fears by imagining herself as a scary monster. She appeared in "Afraid of the Dark."

Adam

• Adam (voiced by Dee Bradley Baker) is a kid who couldn't master a very hard video game. Uncle Grandpa and Pizza Steve shrunk themselves to go inside his brain and help him get better. Adam's eyes were barely open from playing too many video games. Adam appeared in "Brain Game."

Angry Man Johnson

• Angry Man Johnson (voiced by Roger Craig Smith) is a grumpy old man who hates Charlie Burgers and everyone, including Uncle Grandpa. He is always angry. Angry Man Johnson appeared in "Charlie Burgers."

Austin

• Austin (voiced by Carlos Alazraqui) is a kid who felt he had too many flaws. He asked Uncle Grandpa to turn him into a robot to become the most "perfect" kid. Austin appeared in "Perfect Kid."

Shaquille O'Neal

• Shaquille O'Neal (voiced by himself) is a famous former basketball player and an old friend of Uncle Grandpa. Uncle Grandpa helped Shaq achieve his dream of being a stand-up comedian. He appeared in "Perfect Kid" and even helped Uncle Grandpa fight Austin 2.0.

Akira

• Akira (voiced by Laura Bailey) is a Japanese kid who wanted to make the best action-packed monster movie ever. Akira appeared in "Big in Japan."

Riley

• Riley (voiced by Scott Menville) is a teenage boy who failed a test. His father grounded him and made him fold laundry all weekend instead of going to a party.

Josie

• Josie (voiced by Grey DeLisle-Griffin) is a girl who was trying to make "duck lips" for a website called "face hole" to get many followers and likes. Josie appeared in "Duck Lips."

Emily

• Emily (voiced by Kari Wahlgren) is a girl scout.

Isabella

• Isabella (voiced by Nika Futterman) is a girl who loves to invent things, but her inventions aren't very useful. Isabella appeared in "Inventor Mentor."

Pilot Characters

Ham Sandwich Jones

• Ham Sandwich Jones (voiced by Steven Blum) is a nerdy teenager who at first didn't like Uncle Grandpa but later grew to like him. He also appeared in an episode of Secret Mountain Fort Awesome where he was busy playing a portable game.

Remo

• Remo (voiced by Tom Kenny) is a popular kid who likes to cause trouble. He also started off disliking Uncle Grandpa but eventually warmed up to his funny antics.

Crazy Driving Man

• Crazy Driving Man (voiced by Paul Rugg, Kevin Michael Richardson) is a man with glasses who is Remo's "uncool" father. He later reappears as a driving instructor in an Uncle Grandpa episode.