Poorly written comic-reliefs

A Comic Relief is the inclusion of a humorous character, scene, or witty dialogue in an otherwise serious work, often to relieve tension. Comic relief usually means a releasing of emotional or other tension resulting from a comic episode interposed in the midst of serious or tragic elements in a drama. Comic relief often takes the form of a bumbling, wisecracking sidekick of the hero or villain in a work of fiction. A sidekick used for comic relief will usually comment on the absurdity of the hero's situation and make comments that would be inappropriate for a character who is to be taken seriously. Other characters may use comic relief as a means to irritate others or keep themselves confident.

Some Comic Reliefs can be done right and when executed to perfection, some of them can become fan favorites on the show. Take Roger from American Dad!, he is a done right version of a Comic relief, and he has become a fan favorite on the show. However, in a TV Show or a Movie, sometimes, Comic Reliefs can be considered pointless to the show or movie. Such as Jar Jar Binks from Star Wars, he served no purpose on the show, and he has received tons of negative feedback from fans of the franchise.

Most comic relief characters however are incapable of being the main stars of their own show or movies (unless that they are done right), and comic relief spin-offs like Planet Sheen learnt that the hard way.

Examples of Badly Done Comic-Reliefs

 * Bob Bobowski (SMG4 Season 8 only)
 * Burt Burtonburger (Kid vs. Kat)
 * Charlie (Thomas & Friends)
 * Cisco Ramon (The Flash)
 * Keisuke Naoto (Magical Girl Site) (possibly)
 * Cosmo (The Fairly OddParents; Seasons 9 - 10)
 * Denzel Crocker (The Fairly OddParents (Seasons 9-10))
 * Fanboy and Chum Chum (Fanboy and Chum Chum)
 * SwaySway and Buhdeuce (Breadwinners)
 * Sanjay Patel and Craig (Sanjay and Craig)
 * Francis (Super Paper Mario)
 * Gamzee Makara (Homestuck)
 * Grubber (My Little Pony: The Movie)
 * Gus Turner (RobotBoy)
 * Hei Hei (Moana)
 * Hi-5 (The Emoji Movie)
 * Hifumi Yamada (Danganronpa: Trigger Happy Havoc)
 * Hudson Gimble (Game Shakers)
 * Jar Jar Binks (Star Wars prequel trilogy)
 * Jeffy (SuperMarioLogan)
 * SpongeBob SquarePants (SpongeBob SquarePants (Seasons 6-8))
 * Patrick Star (SpongeBob SquarePants (Seasons 6-8))
 * Larry Quinn (The Cat in the Hat)
 * Master Shake (Aqua Teen Hunger Force)
 * Mater (Cars 2)
 * Minions (Minions)
 * Misao Mondou (Super Sentai: Doubutsu Sentai Zyuohger)
 * Monokuma Kubs (Danganronpa V3: Killing Harmony)
 * Mr. Turner (The Fairly OddParents)
 * Neelix (Star Trek: Voyager)
 * Onari Yamanouchi (Kamen Rider Ghost)
 * Ruby Rhod (The Fifth Element)
 * Minoru Mineta (My Hero Academia)
 * Sergio (The Casagrandes)
 * Sheen Estevez (Planet Sheen)
 * Skids and Mudflap (Transformers films)
 * Slip & Slide D'Peel (Coconut Fred's Fruit Salad Island)
 * Snails (Dungeons and Dragons)
 * Sparky (The Fairly OddParents)
 * The Lemmings (Norm of the North)
 * The Logging Locos (Thomas & Friends)
 * Victor, Hugo, and Laverne (The Hunchback of Notre Dame (1996))
 * Yuma Tsukimo, Bronk Stone (Yu-Gi-Oh! Zexal)
 * Zack and Deuce (The Day My Butt Went Psycho!)
 * Weasel (Deadpool)
 * Devon and Cronwall (Quest for Camelot)
 * Jacquimo (Thumbelina (1994))
 * Jean-Bob (The Swan Princess)
 * Terk (Tarzan (1999))
 * Mayor Turkey Lurkey (Chicken Little)

Examples of Good Comic-Reliefs

 * Michelangelo (Teenage Mutant Ninja Turtles (2003))
 * Albert "Gib" Gibson (True Lies)
 * Bulk and Skull (Power Rangers)
 * Donkey (Shrek)
 * Ron Stoppable (Kim Possible (2002))
 * Genie (Aladdin (1992))
 * Iago (Aladdin (1992))
 * Mr. Goodman (SuperMarioLogan)
 * Ibuki Mioda (Danganronpa 2: Goodbye Despair)
 * Jaq and Gus (Cinderella (1950))
 * Sebastian (The Little Mermaid (1989))
 * Scuttle (The Little Mermaid (1989))
 * Lumiere (Beauty and the Beast (1991))
 * Cogsworth (Beauty and the Beast (1991))
 * Scooby-Doo (Scooby-Doo)
 * Mr. Goodman (SuperMarioLogan, 2009-2016)
 * Kid Cosmic (Kid Cosmic)
 * Rex (Toy Story franchise)
 * K.O. (OK K.O.!: Let's Be Heroes)
 * Donald Duck (Mickey Mouse)
 * Goofy (Mickey Mouse/Goof Troop)
 * Pip (Enchanted)
 * Mabel (Gravity Falls)
 * Merry and Pippin (The Lord of the Rings)
 * Minions (Despicable Me films; excluding Minions)
 * Mushu (Mulan (1998))
 * Yao, Ling and Chien-Po (Mulan (1998))
 * Olaf (Frozen)
 * Nora Valkyrie (RWBY)
 * Pig (Back at the Barnyard/Barnyard)
 * Rallo Tubbs (The Cleveland Show)
 * Roger Smith (American Dad!)
 * Geoffrey the Butler (The Fresh Prince of Bel-Air)
 * Dory (Finding Nemo/Finding Dory)
 * Emile (Ratatouille)
 * SpongeBob SquarePants (SpongeBob SquarePants (Seasons 1-5, 9-present))
 * Patrick Star (SpongeBob SquarePants (Seasons 1-5, 9-present))
 * Scrat (Ice Age)
 * Sheen Estevez (The Adventures of Jimmy Neutron, Boy Genius)
 * The Seven Dwarves (Snow White and the Seven Dwarfs (1937))
 * Timon and Pumbaa (The Lion King (1994))
 * Tow Mater (Cars and Cars 3)
 * Wander (Wander Over Yonder)
 * Kronk (The Emperor's New Groove)
 * Louis (The Princess and the Frog)
 * Mongo (Blazing Saddles)
 * Brick Tamland (Anchorman: The Legend of Ron Burgundy)
 * Alebrije de la Biblioteca (Leyendas)
 * Sokka (Avatar: The Last Airbender)