List of Secret Mountain Fort Awesome and Uncle Grandpa characters  The characters in the two American animated television shows "Secret Mountain Fort Awesome", and its spin-off, "Uncle Grandpa", are created by Peter Browngardt. The two shows are produced by Cartoon Network Studios for Cartoon Network.  ="Secret Mountain Fort Awesome" characters=  Festro is one of the five main protagonists of one of Peter Browngardt's Animated television series, "Secret Mountain Fort Awesome" on Cartoon Network. Festro is purple with green eyes, two large tusks, and 2 smaller fangs in between. He is quite muscular and only wears a pair of briefs and a pair of brocro sneakers. He has black hair(spikes) and a bald spot at the top. Festro also has purple knuckles on his fingers. Festro is brash, crude, selfish, and inconsiderate. He has the personality of your typical college frat boy, as all he wants to do is slack off and party. He rarely takes responsibility for any of his actions and is usually taking advantage of his friends. Despite his disgusting behavior, Festro has moments where he owns up to his mistakes. He also has moments where he will do anything to defend his friends. The Fart is one of the five main protagonists of "Secret Mountain Fort Awesome". The Fart is a guy who is made out of butts. He has a big butt on his head that moves when he talks, and two blue eyes with eyelashes. He has a butt on his face that serves as his abs and he has three little butts on his chest that serve as the rest of his abs. He has butt cracks on his arms and legs, and butts replacing his hands and feet. He wears a green belt with a golden heart-shaped buckle on it. Ironically, the only place where he doesn't have a butt is on his rear end. The Fart is the most sensitive and caring out of all the Disgustoids. His tastes and actions are more refined as he tries to make more of an effort to understand the humans and abide by their culture in hopes of abolishing their hatred for disgustoids. He is also the most logical out of all of them, preferring to think things through before just jumping into them. Gweelok is one of the five main protagonists of "Secret Mountain Fort Awesome". He is the third main character of the show. he is a very intelligent technical nerd who is a walking ball of mucus.