<Li> Belly Bag (voiced by Eric Bauza) − Uncle Grandpa's talking red fanny pack and his closest friend, who carries all of his priceless valuables especially Uncle Grandpa's weapon of choice, his laser hammer . Belly Bag's insides contain many weird objects and dimensions, including a castle where Frankenstein's Monster lives . Despite being practically attached to Uncle Grandpa, Belly Bag has the ability to walk and can produce multiple hands from inside his body . He even has the ability to see despite having no visible eyes . In the second Uncle Grandpa short, "Secret Mountain Uncle Grandpa", he is referred to as "Fanny Pack" and is voiced by Paul Rugg . His catchphrase is "What's cookin', good - lookin'?" </Li> <Li> Mr. Gus (voiced by Kevin Michael Richardson) − Mr. Agustus Macaroni Spaghetti Chilli Alfredo, better known as Mr. Gus is usually the voice of reason . He is a large, serious, yet somewhat grouchy green dinosaur who was Uncle Grandpa's rival in "Leg Wrestler", but eventually became his friend and bodyguard . He is unfazed by most of Uncle Grandpa's eccentricities and seems to have an even temper despite his roommates, but often loses his temper, especially where Pizza Steve's antics are concerned . He can be a bully in a few episodes, such as "treasure map", when he destroyed Uncle Grandpa's treasure map, and sent Pizza Steve to a pizza eating contest . One of Mr. Gus' favorite parts of the day is 9: 00 pm, which is his designated bathroom time, and during that period he likes to take a bubble bath and read for an hour . His catchphrase is "You're just sayin' that to get under my skin ." </Li> <Li> Pizza Steve (voiced by Adam DeVine, Pendleton Ward in' For Pete! Love, Pen') − An anthropomorphic talking pepperoni pizza slice with sunglasses and a member of Uncle Grandpa's crew . Pizza James Stevens, better known as Pizza Steve is depicted as extremely vain and often brags about how cool and awesome he is, which annoys his nemesis Mr. Gus . Despite this, he pretends to be very popular and a hit with women . He is a good friend of Uncle Grandpa . Pizza Steve is featured in his own cartoon shorts entitled "A Slice of Life with Pizza Steve", which usually involve Pizza Steve exaggerating his abilities . In "Tiger Trails", he claims to be a black belt in Italian Karate, but he wears the black belt over his eyes instead of around his waist . His catchphrase is "I'm like a modern - day Thomas Einstein except a brazillion times better!" </Li> <Li> Giant Realistic Flying Tiger − A static photographic cutout of a tiger that Uncle Grandpa rides on to get around . Tiger is Uncle Grandpa's other best friend, and while she exhibits normal tiger traits such as only being able to communicate by roaring, she is able to fly and leaves a rainbow trail as she goes . The rainbow trail is also expelled from Tiger's rear end when she passes gas . Her personality is a cross between that of a stereotypical teenage girl, a house cat, and a real - life tiger . In order for Tiger's emotions to be shown, only certain parts of her body (specifically her face) are animated; this is done in a stop motion style . </Li>

Who plays the voice of pizza steve on uncle grandpa