The Cheat is Strong Bad's sidekick and Strong Mad's best friend. His isolation has led him to explore his creativity, which is evident in his description of his fictional folk hero Saddy Dumpington. Strong Sad also enjoys playing board games, and he seems to enjoy going to science-fiction and fantasy conventions. His many interests include listening, books, listening to books, calligraphy, being alone, arts and crafts. In early cartoons, Strong Sad's main defining characteristic is his chronic depression, but has since been known to have high levels of intelligence and creativity. Strong Bad also calls Strong Sad names such as 'Dairy Queen', 'The Ghost of Christmas Suck', ' Trundle Bed', 'Diaper Stripe', and 'Theloneus Dump'. He is constantly tortured by Strong Bad, who frequently threatens to beat him up (and often does). He is usually very calm and soft-spoken, although is hyperactive when given caffeine. His head is white and has an odd lump on the top (which Strong Bad refers to as a 'disturbing soft serve flip.' ), and resembles the Manicouagan Reservoir. His body is round and two shades of gray-a lighter gray from the waist up, a darker gray from the waist down. He stands somewhere between Strong Bad and Strong Mad in height, and has large, elephant-like feet he calls 'soolnds,' which has led Strong Bad to believe he is in some way descended from elephants. Strong Sad is the younger brother of Strong Bad and Strong Mad. He also has a horrible painting in his closet that gives everyone The Jibblies, called the Rocoulm. His best friend is The Cheat, whom he protects with fervor. He generally speaks in short, simple sentences, often in an unrestrained roar. He wears a purple wrestler's singlet with a white circle in the front containing a large red M and has red shoes. His mouth is always partially open revealing three teeth. He has two dots for eyes and giant, bushy eyebrows that are usually angry. His body is a rectangle with different dimensions given in different cartoons, with perfectly square shoulders and no distinct head or neck. He has also proved to possess a sort of childlike innocence, which he has demonstrated by making macaroni pictures and, once, asking if he could keep Bubs' Concession Stand, claiming it followed him home. However, he appears to at least try to be friendly to other characters when not told to harm them by Strong Bad. He is also the bassist to Marzipan's music group Cool Tapes. He often hangs out with The Cheat and helps Strong Bad commit mischief, harass, and occasionally beat up the other characters. He is the eldest brother of the brothers Strong his siblings are Strong Bad and Strong Sad. Strong Mad is an enormous, hyper-muscular, semi-verbal, usually-angry character (much like the Hulk). He often insults his younger brother, Strong Sad, and answers emails sent to him by his fans. Strong Bad is almost always accompanied by his pet/sidekick, The Cheat, often while playing pranks on other characters in the series. He typically wears a red lucha libre mask, black pants and his boxing gloves (with which he can type), but no shirt. Strong Bad is the middle child of the three Strong brothers, the others being Strong Sad and Strong Mad.

The cheat homestar runner