Clyde Donovan - South Park

South Park

Main cast, played by Trey Parker

Episode 1x02: Weight Gain 4000 (Aug 20, 1997)
Episode 1x04: Big Gay Al's Big Gay Boat Ride (Sep 3, 1997)
Episode 1x07: Pinkeye (Oct 29, 1997)
Episode 1x08: Starvin' Marvin (Nov 19, 1997)
Episode 1x10: Damien (Feb 4, 1998)
Episode 1x11: Tom's Rhinoplasty (Feb 11, 1998)
Episode 2x05: Conjoined Fetus Lady (Jun 3, 1998)
Episode 2x07: City on the Edge of Forever (Jun 17, 1998)
Episode 2x11: Roger Ebert Should Lay Off the Fatty Foods (Sep 2, 1998)
Episode 26x04: Deep Learning (Mar 8, 2023)
Episode 26x05: DiKimble's Hot Dogs (Mar 22, 2023)
Episode 27x02: Got a Nut (Aug 6, 2025)
Episode 27x05: Conflict of Interest (Sep 24, 2025)
Episode 28x01: Twisted Christian (Oct 15, 2025)

Guest cast, played by Trey Parker

Episode 2x12: Clubhouses (Sep 23, 1998)
Episode 3x05: Tweek vs. Craig (Jun 23, 1999)
Episode 4x02: Cartman's Silly Hate Crime 2000 (Apr 12, 2000)
Episode 4x11: Fourth Grade (Nov 8, 2000)
Episode 4x13: Helen Keller! The Musical (Nov 22, 2000)
Episode 4x15: Fat Camp (Dec 6, 2000)
Episode 5x04: Scott Tenorman Must Die (Jul 11, 2001)
Episode 5x05: Terrance and Phillip: Behind the Blow (Jul 18, 2001)
Episode 5x06: Cartmanland (Jul 25, 2001)
Episode 5x12: Here Comes the Neighborhood (Nov 28, 2001)
Episode 6x06: Professor Chaos (Apr 10, 2002)
Episode 6x10: Bebe's Boobs Destroy Society (Jul 17, 2002)
Episode 6x11: Child Abduction is Not Funny (Jul 24, 2002)
Episode 6x12: A Ladder to Heaven (Nov 6, 2002)
Episode 6x13: The Return of the Fellowship of the Ring to the Two Towers (Nov 13, 2002)
Episode 6x16: My Future Self 'n' Me (Dec 4, 2002)
Episode 7x03: Toilet Paper (Apr 2, 2003)
Episode 7x12: All About the Mormons? (Nov 19, 2003)
Episode 8x01: Good Times with Weapons (Mar 17, 2004)
Episode 8x08: Douche and Turd (Oct 27, 2004)
Episode 8x10: Pre-School (Nov 10, 2004)
Episode 8x11: Quest for Ratings (Nov 17, 2004)
Episode 8x12: Stupid Spoiled Whore Video Playset (Dec 1, 2004)
Episode 8x13: Cartman's Incredible Gift (Dec 8, 2004)
Episode 8x14: Woodland Critter Christmas (Dec 15, 2004)
Episode 9x01: Mr. Garrison's Fancy New Vagina (Mar 9, 2005)
Episode 9x05: The Losing Edge (Apr 6, 2005)
Episode 9x06: The Death of Eric Cartman (Apr 13, 2005)
Episode 9x09: Marjorine (Oct 26, 2005)
Episode 9x11: Ginger Kids (Nov 9, 2005)
Episode 9x13: Free Willzyx (Nov 30, 2005)
Episode 10x01: The Return of Chef (Mar 22, 2006)
Episode 10x02: Smug Alert! (Mar 29, 2006)
Episode 10x08: Make Love, Not Warcraft (Oct 4, 2006)
Episode 10x09: Mystery of the Urinal Deuce (Oct 11, 2006)
Episode 11x03: Lice Capades (Mar 21, 2007)
Episode 11x06: D-Yikes (Apr 11, 2007)
Episode 11x07: Night of the Living Homeless (Apr 18, 2007)
Episode 11x10: Imaginationland: Episode I (Oct 17, 2007)
Episode 11x14: The List (Nov 14, 2007)
Episode 12x01: Tonsil Trouble (Mar 12, 2008)
Episode 12x08: The China Problem (Oct 8, 2008)
Episode 12x09: Breast Cancer Show Ever (Oct 15, 2008)
Episode 12x11: Pandemic 2 - The Startling (Oct 29, 2008)
Episode 12x13: Elementary School Musical (Nov 12, 2008)
Episode 13x03: Margaritaville (Mar 25, 2009)
Episode 13x04: Eat, Pray, Queef (Apr 1, 2009)
Episode 13x07: Fatbeard (Apr 22, 2009)
Episode 13x09: Butters' Bottom Bitch (Oct 14, 2009)
Episode 14x12: Mysterion Rises (Nov 3, 2010)
Episode 14x13: Coon vs. Coon & Friends (Nov 10, 2010)
Episode 15x01: HUMANCENTiPAD (Apr 27, 2011)
Episode 15x05: Crack Baby Athletic Association (May 25, 2011)
Episode 15x08: Ass Burgers (Oct 5, 2011)
Episode 15x09: The Last of the Meheecans (Oct 12, 2011)
Episode 16x01: Reverse Cowgirl (Mar 14, 2012)
Episode 16x04: Jewpacabra (Apr 4, 2012)
Episode 16x08: Sarcastaball (Sep 26, 2012)
Episode 17x02: Informative Murder Porn (Oct 2, 2013)
Episode 17x07: The Black Friday Trilogy (Nov 13, 2013)
Episode 17x09: Titties and Dragons (Dec 4, 2013)
Episode 18x02: Gluten Free Ebola (Oct 1, 2014)
Episode 18x03: The Cissy (Oct 8, 2014)
Episode 19x02: Where My Country Gone? (Sep 23, 2015)
Episode 20x01: Member Berries (Sep 14, 2016)
Episode 20x02: Skank Hunt (Sep 21, 2016)
Episode 20x03: The Damned (Sep 28, 2016)
Episode 20x04: Wieners Out (Oct 12, 2016)
Episode 20x05: Douche and a Danish (Oct 19, 2016)
Episode 21x01: White People Renovating Houses (Sep 13, 2017)
Episode 21x08: Moss Piglets (Nov 15, 2017)
Episode 22x02: A Boy and a Priest (Oct 3, 2018)
Episode 22x05: The Scoots (Oct 31, 2018)
Episode 23x09: Basic Cable (Dec 4, 2019)
Episode 25x01: Pajama Day (Feb 2, 2022)

Guest cast, played by Matt Stone

Episode 14x11: Coon 2: Hindsight (Oct 27, 2010)