He wore thick black glasses and had huge front buck teeth which earned him the name "Bucky Beaver," though he was later dubbed "Trashmouth" due to his foul language and loud mouth that often got him into trouble. Like Ben Hanscom, he also stands up to Henry Bowers after he throws his food tray onto him. Patrick, Vic and Belch chase him but trip on food and Henry, Patrick, Vic and Belch leave.
Richie did lots of Voices, though most of them were awful and sounded much like himself.
(Novel only) Richie, along with Mike Hanlon, survived Ben Hanscom's Smoke-hole and was able to see the arrvial of It.
As an adult, he is a famous radio talent DJ, going by Rich "Records" Tozier. (In the movie, he is more of a talk show host like Leno or Letterman)
He developed a small crush on Beverly in 1958 but it was pretty much only mutual flirting.
His bad Voices he did as a kid have since improved greatly, and he has began wearing contact lenses and according to IT's manifestation of Stan Uris, had a nose job, that no one suspected.
During the Ritual of Chud, he assists Bill in destroying It for good, but then the fog wipes away most his memories.
Richie later showed up in Derry with Bevery Marsh learning the steps to the lindy-hop. They make secret glances at each other about the murders by Pennywise the Clown, which ended the summer before. Jake Epping gives them some helpful hints on dancing as he learns the whereabouts of the Dunning family.