is a fictional character in the Hey Arnold!
He is Robert Simmons' partner who debuted in "Arnold's Thanksgiving". He makes cameos throughout season 4 and 5. He has a non-speaking appearance in The Jungle Movie.
Not much is known about Peter. He seems to have a bit of a temper, and is embarrassed by the idea of public speaking. He also has an intense dislike of both Joy, and Robert's mother, Pearl.
Peter is tall, tan, and he wears a red sweater with blue jeans and sandals. He has a blonde mustache and short blonde hair.
From left to right: Peter, Joy, Uncle Chuck, Pearl (Mr. Simmons' mother)
Peter judging the synchronized swimming competition
Peter and Pearl having dinner in "Rich Guy" (no cues)
Peter as he appears in The Jungle Movie