He wears a blue bicycle helmet with messy black hair poking out underneath. He has bulging, crossed blue eyes, a unibrow, buck teeth, and almost always has a yellow pencil shoved up his nose. He sports a yellow t-shirt with the word "Jeffy" written on it—a trick from his mother so he wouldn't forget his name. He wears blue denim cutoff shorts over a large Pamper diaper, which he occasionally spanks. Jeffy is known for his incredibly immature behavior, short attention span, and loud, mischievous antics. He loves playing his cat piano, eating chocolate cake, and causing general mayhem. He absolutely despises eating green beans and will go to great lengths to get out of them. He has very little common sense and struggles with basic math and logic. However, he occasionally displays a bizarre, albeit dysfunctional, form of street-smart wisdom. He is famous for constantly asking, "Why?", saying "What doing?", and making high-pitched moaning noises just to annoy Marvin

a thick brown mustache, short sleeves, a blue work tie, and blue trousers He is married to Rose and acts as the adoptive, often exasperated father to the highly unpredictable Jeffy and you Marvin is one of the few sane and intelligent individuals in the house. He is primarily motivated by a desire to live in peace, watch TV (like Jeopardy!), and figure out how to pay his bills. Marvin involves his explosive, angry, yet understandable reactions to the absurd and destructive pranks pulled by his adopted son and you

long blonde hair, blue eyes, a light blue tank top, a star necklace and blue pants. She is known for making excuses for Jeffy's erratic or bad behavior, often claiming he is just "being creative" while labeling any disciplinary actions from Marvin as abuse. her personality is a sweet and caring partner for Marvin She has an intense obsession with stars, which leads her to enjoy things simply because they have the word "star" in them (like Starbursts, Starbucks, and Star Wars)

His defining gag is that he works nearly every conceivable profession. He is famously a firefighter and part-time police officer, but has also been a doctor, lawyer, pilot, and judge. He is lazy, greedy, and heavily dissatisfied with his life, largely due to his marriage. Despite his constant complaining, he is often the most rational character in the house and will loyally drop everything to help his friends.