He was initially a background character who appeared in the boys' classroom and made background appearances alongside other fourth graders. Garrison as "Casey". He has his first speaking role in " Conjoined Fetus Lady ", where he is referred to as "Kevin" by Stan which is his name from there on out. Kevin is described by Trey Parker as the kid who is "always screwing up the whole show".
He has a bigger role in " Fatbeard ", where Cartman recruits Kevin and a few other classmates to become pirates and travel to Somalia , and he is critical to taking control of the French vessel that the crew commandeers for the rest of the episode proving they are worthy pirates. Due to his rather smaller role compared to the rest of the boys, Kevin's voice seems to change often. In " Clubhouses ", his voice is deeper, and like Butters , sounds similar to Craig and Clyde.
In " Fatbeard " his voice is also deep and is more similar to Clyde's again, and in "Cupid Ye", he sounds similar to Stan. Garrison as "Casey", but is referred to by Stan in " Conjoined Fetus Lady " as "Kevin", a name used for many characters in the second season. Since then, he has consistently been referred to as "Kevin". During the thirteenth season , a character named Kevin Stoley was referred to off-screen in " Fishsticks " and it was revealed later in " Fatbeard " to be this Kevin.
Kevin wears a sky-blue jacket with a red collar, red gloves, and dark blue trousers. His hair is black, and the style is similar to that of Stan's. The light blue color of his jacket explains why in the ancient scripts he was written as "Sky". In terms of attractiveness, Kevin is ranked 9 on the rigged list for the cutest boys, created by the girls in " The List ". In the future timeline set in South Park: Post Covid: The Return of Covid , he dresses similarly to the Fourth Doctor of the Doctor Who universe, which consists of a multi-colored scarf, brown jacket over an olive green vest, light blue shirt, red tie, and blue pants.
His hair has slightly grayed. Kevin's personality is little-known, but he is known for his Sci-Fi obsession, which he consistently annoys other characters mainly Cartman with - in " The Return of the Fellowship of the Ring to the Two Towers " he is wearing a Stormtrooper mask while meeting with the other children in their Lord of the Rings outfits, and in " Fatbeard " he brings along a green lightsaber instead of a sword as a member of Cartman 's pirate crew.
