Ripp Grunt (later known as Corporal Ripp Grunt) is the second son of General Buzz Grunt and the late Lyla Grunt, and is the brother of Tank and Buck Grunt. He works part-time in the Slacker career track, as a Gas Station Attendant.
Unlike General Buzz and Tank, Ripp does not have an interest in the military. He does not get along well with his older brother or his father, though he is friends with Buck when the game starts. He is friends with Ophelia Nigmos and has a high relationship with Johnny Smith, though they are not friends at the start of the game. He doesn't have any romances, but players often pair him with Ophelia Nigmos, despite her starting out as Johnny Smith's girlfriend.
When first played, he is 8 days away from becoming an adult.
Ripp carries genes for blond hair, which he may have received from his mother. There is a high chance that children he fathers will be blond, even if the mother has a dominant hair color (brown or black).
Ripp also has a mismatch between his personality and his zodiac sign. Ripp's personality is very close to the preset personality for a Libra, with high nice, playful and outgoing scores. However, his zodiac sign is Sagittarius, even though a Sim created with that personality would be a Libra.
There is usually a high chance that Ophelia and Ripp, when they're not selectable, will flirt if Johnny ages to adult or young adult before them.
He also was taught all his toddler skills by Lyla, but grew up badly. This may indicate that he had no particular wants to learn them.
He is also featured in The Sims 2 (PSP), in which he is an adult. Evidently, his relationship with Tank has gotten worse since The Sims 2. Ripp is the vendor for Division 47. Strangely, while Ripp has brown hair in The Sims 2, he has black hair in the PSP version.