Detective Jarvis
Detective Jarvis appears in the Season Ten episode, "The Return of Chef". He comes to South Park Elementary to talk to the children about Chef's recent pedophilic behavior, which was later revealed that it was from the brainwashing by the Super Adventure Club. He says that he wants to collect testimony from the children, but only shows how a pedophile would treat them.
Appearance
He has brown hair, which he combs back, and wears a black suit with a dark red tie and a yellow badge.
His character model was reused with modified coloration, no badge, and a more youthful face, as weatherman Keenan Williams in "Smug Alert!".
Detective Jarvis questioning The 4th Grade class about Chef's behavior in "The Return of Chef".
Personality
He seems to take his demonstrations very seriously, demonstrating the actions of pedophiles with unusual enthusiasm. He also seems childish when convinced of something, as shown from his responses to Stan Marsh refusing that Chef is a pedophile.
References