The characters on ''WesternAnimation/RegularShow'' include:

* [[Characters/RegularShowTheMainDuo The Main Duo]] [[labelnote:Click to Expand]]Mordecai, Rigby[[/labelnote]]
* [[Characters/RegularShowMainCharacters Main Characters]] [[labelnote:Click to Expand]]Mordecai, Rigby, Benson Dunwoody, Pops, Skips, Mitch "Muscle Man" Sorenstein, Hi-Five Ghost[[/labelnote]]
* [[Characters/RegularShowSupportingCharacters Supporting Characters]] [[labelnote:Click to Expand]]Thomas/[[spoiler:Nikolai]], Margaret Smith, Eileen Roberts, Cloudy Jay "CJ", Starla Gutsmandottir, Mr. Maellard, Don, Baby Ducks, Muscle Man's Family, Low-Five Ghost, Sensai, Audrey, Party Pete (Peter Hermanverfal), Gene, Quintin "Quips" Quippenger, Frank Smith, Celia[[/labelnote]]
* [[Characters/RegularShowTheSupernaturalAndOtherAntagonists The Supernatural And Other Antagonists]] [[labelnote:Click to Expand]]The Supernatural (The Guardians of Eternal Youth, Gareth "Gary", Death, God of Basketball, Techmo, Thomas, Santa Claus, Eggscellent Knight), Antagonists (Garrett Bobby Ferguson Sr., Garrett Bobby Ferguson Jr., Klorgbane the Destroyer, Summertime Song, Capicola Gang, Geese, Doug "The Doppelganger" Shablowski, Natalia, Susan, Night Owl, No Rules Man, Randall Ross, [[spoiler:Anti-Pops]])[[/labelnote]]