Reno 911! is an American comedy television series on Comedy Central that ran from 2003 to 2009. It is a mockumentary-style parody of law enforcement documentary shows, specifically Cops, with comic actors playing the police officers. Most of the material is improvised, using a broad outline, and with minimal scripted material. The series spawned a film, Reno 911!: Miami, featuring the same cast. Thomas Lennon, Robert Ben Garant and Kerri Kenney-Silver all starred in and are billed as creators of the series.
- From 2003 to 2008, Wendi McLendon-Covey appeared as Deputy Clementine Johnson.
- Wayne Brady appears during Season 2 as "New Jones - Deputy Culufu Garwood."
- Keegan-Michael Key appears in the fifth and sixth season as the "Theoretical Criminal", a criminal with a lisp who frequently calls the Reno Sheriff's Department to report crimes he claims he did not commit, or to show the deputies illegal items he has "found." He often says, "Hypothetically speaking, If I did perpetrate the crime, if I had done it, what would the repercussions be?" The deputies play along, but always end up arresting him. Later, Key guest-starred as another character, the "Blu-Ray Thief", in the sixth and final season.
- Debra Wilson appears during Season 5 as the "Dominatrix" during a visit on the show responding to complaints from "the kettle-corn people" about explicitly-worded ad flyers she had distributed at the Farmer's Market. According to Dangle, she is actually a transsexual that was named Jeff and was Dangle's swim-teammate in high school.
- Ryan Stiles appears during Season 5 as "Sgt. Cliff", a consultant that the L.A.P.D. sends over to help the deputies improve their undercover work because, as Dangle says, "They can smell that we're pigs from a mile away." Clift puts the deputies through acting exercises that backfire horribly when put into practice. His final words while the team retreats without him from a raid gone wrong are "You bastards!"
- Aisha Tyler guest-stars on the Season 5 episode "Dangle's Secret Family" as Befany Dangle.
- Gary Anthony Williams and Jonathan Mangum have also made guest appearances on the show.