History Deuteragonist / WesternAnimation

* ''WesternAnimation/MiraculousLadybug'': [[Characters/MiraculousLadybugAdrienAgreste Adrien Agreste/Chat Noir]], Marinette/Ladybug's partner and love interest, is this. While Ladybug is clearly the main protagonist, he is the other half of the eponymous Superhero duo, and has major subplots devoted to him.

* ''WesternAnimation/GravityFalls'': The Pine twins are the stars of the show, but the main focus is more on the logical and curious Dipper while Mabel is the comedic and emotionally driven Deuteragonist. [[Characters/GravityFallsGrunkleStan Grunkle Stan]] increasingly shows signs of being the Tritagonist of the narrative, now that we know just ''how'' involved he is with Gravity Falls' happenings.

* ''WesternAnimation/TheOwlHouse'': Luz is the main character, but [[Characters/TheOwlHouseEdaClawthorne Eda Clawthorne]] is the show’s main witch character, who helps guide Luz through the demon realm and teaches her magic. King is the tritagonist.

* ''WesternAnimation/StarWarsTheCloneWars'': The show is primarily about Anakin and his slow slipping towards TheDarkSide. Obi-Wan and Ahsoka are the deuteragonists, with both of them having roughly equal screentime, and entire arcs revolving around them. Finally there're Ventress and Fives as tritagonists, who have rather complex and rounded arcs built around their CharacterDevelopment, despite being relatively minor characters.

** The other three Crystal Gems (Garnet, Amethyst, and Pearl) collectively serve as the deuteragonists to Steven's protagonist. His interaction with them and his learning to control his powers forms much of the development of the series. Of the three Crystal Gems, Pearl has received a fair amount of focus due to her strong connection with Steven's mother.

** Greg is very close to this trope considering the flashback episodes are a character arc surrounding him and his relationship with Rose.
** Connie becomes this to Steven starting in "Alone Together" and Season 2 onwards with the episodes in which she appears as she develops her sword-fighting skills and they discover fusion as Stevonnie.

** ''Total Drama Island'' has Owen as the deuteragonist to Gwen's protagonist; Duncan acts as the tritagonist.

** ''Total Drama World Tour'' has Alejandro being both the deuteragonist and antagonist, to Heather's protagonist; Cody acts as the tritagonist.

* ''WesternAnimation/AdventureTime'': Finn the human and Jake the shape-shifting dog are [[MainCharacters the two protagonists of the show]], while [[BigGood Princess Bubblegum]] serves as the deuteragonist, appearing nearly every episode, setting in motion many events in the series and sometimes becoming the protagonist for an episode. Ice King and Marceline are tritagonists.

* ''WesternAnimation/AmericanDad'': Stan is always the protagonist (save for a few episodes), with the role of deuteragonist constantly shifting among Stan's family or [[AmusingAlien Roger]]. The ''de facto'' deuteragonist would probably be Steve, since he is the closest to Stan in terms of relationship and the only character who has his own recurring group of loser friends, where he ''is'' the protagonist.

* ''WesternAnimation/AvatarTheLastAirbender'' has two: [[TheHeart Katara]], who is the show's opening narrator, the one who starts the action by releasing Aang, and whose growth alongside Aang is given as much of a focus as his, and [[AntiVillain Zuko]], whose story arc and CharacterDevelopment have the most impact on the overall narrative next to [[TheHero Aang's.]] They are also great foils for one another, and their background and choices are constantly compared.

* ''WesternAnimation/FamilyGuy'': Brian, who is second only to Peter. Stewie comes third, being the Deuteragonist of most episodes focusing on Brian (and thus, the overall Tritagonist).

* ''WesternAnimation/GravityFalls'': The Pine twins are the stars of the show, but the main focus is more on the logical and curious Dipper while Mabel is the comedic and emotionally driven Deuteragonist. Grunkle Stan increasingly shows signs of being the Tritagonist of the narrative, now that we know just ''how'' involved he is with Gravity Falls' happenings.
* ''WesternAnimation/HeyArnold'': Helga, to Arnold himself. As the seasons went on, Arnold became more of a FlatCharacter and started [[OutOfFocus appearing less and less]], while [[SpotlightStealingSquad more attention was focused]] on Helga's family issues and complex personality, sort of making her the real protagonist. The canceled spin-off series would've been told from her perspective from the beginning. Arnold's best friend Gerald is the tritagonist.

** Book 1: Mako and Tenzin each serve the roles of Deuteragonists of this book, the former being Korra's love interest and TheLancer while the latter serving as her Mentor. Lin Beifong and Asami Sato each serve as the Tritagonist of the season with Bolin serving as the comedic Tetratagonist.

** Book 3: Tenzin once again takes the reigns as the Deuteragonist and shares this position with Jinora. The former becomes [[spoiler: The BigGood and {{Leader}} of the newly reborn Air Nation]] while the latter gets her own RomanceArc with Kai, [[spoiler: helps take down the BigBad of the season and becomes the youngest Airbending master in history]]. Zaheer serves as the villainous Tritagonist of the season, actively hunting down Korra and co, [[spoiler: killing the Earth Queen and almost killing Korra]]. Finally we have Suyin Beiforg and Kai, the former who serves as a lot of the personal drama between her and Lin while the latter serves as Jinora's love interest [[spoiler: and is instrumental in tracking down the Red Lotus]].
** Book 4: We have [[BigBad Kuvira]] who serves as a villainous Deuteragonist (since her motivations, goals and backstory ultimately moves the entire plot). Asami and Bolin both serve as the Tritagonists since the former has a high number of subplots this season ([[spoiler:and ultimately becomes Korra's final love interest]]) while the latter initially [[spoiler: works for Kuvira before realizing she is a dictator and helps to defeat her]]. Finally we have Mako and Prince Wu serving as Tetratagonist since the latter is the rightful Earth King and the former becomes his bodyguard.

* ''WesternAnimation/MiraculousLadybug'': Adrien Agreste/Chat Noir, Marinette/Ladybug's partner and love interest, is this. While Ladybug is clearly the main protagonist, he is the other half of the eponymous Superhero duo, and has major subplots devoted to him.

** As far as the primary cast goes, Twilight Sparkle is the protagonist, while the remaining five are equally deuteragonistic (with [[TheOneGuy Spike]] following closely behind as the tritagonist).
** Starting with the 6th season, Starlight Glimmer has taken on the role of deuteragonist as a result of being Twilight's pupil. About 1/4 of the season has significant focus on her, especially in the season finale "To Where and Back Again".

* ''WesternAnimation/TheOwlHouse'': Luz is the main character, but Eda is the show’s main witch character, who helps guide Luz through the demon realm and teaches her magic. King is the tritagonist.

* ''WesternAnimation/SamuraiJack'': When the series was resurrected for one final season, it gained a deuteragonist in the form of Ashi. The chief member of the "Daughters of Aku" assassin cult sent to hunt down and kill Jack, the season's story focuses as much on her CharacterDevelopment as it does on Jack's own plot. [[spoiler: Eventually, she pulls a HeelFaceTurn and becomes Jack's sidekick.]]
* ''WesternAnimation/SheRaAndThePrincessesOfPower'': [[TheHero Adora's]] best friend in the Horde, [[TheHeavy main recurring antagonist]], and [[spoiler:love interest]] Catra serves this role in the series. She serves as the main viewpoint character for the Horde and her journey up the ranks is used to parallel Adora's own journey. Her increasingly bitter rivalry with Adora also serves as a large source of dramatic tension. [[spoiler:In the final season her redemption, learning to overcome her issues, and her love for Adora are just as important to the story as Adora's own personal journey as well as discovering her own buried feelings for Catra.]] WordOfGod has even confirmed that Adora's relationship with Catra is the most important one in the show and influences the whole plot.
* ''WesternAnimation/TheSimpsons'': The family has Homer as the Protagonist and main focus of most episodes with Bart taking second place, which makes him the series' proper Deuteragonist. Lisa, with her occasional angst, is the Tritagonist and Marge, being the closest to an OnlySaneMan and thus more of a supporting character than the other family members, is the Tetragonist.

* ''WesternAnimation/SouthPark'': An interesting case of Kyle Broflovski and [[TheProtagonist Stan Marsh]] [[ZigZaggingTrope flip-flopping]] between this role in the series' narrative. The tritagonist (and antagonist) is Eric Cartman. Depending on the era, the tetragonist is either Kenny [=McCormick=] (usually in any episode focusing on the four boys as a group), Butters Stotch, Randy Marsh, Chef (in the first few seasons), Tweek Tweak (in Season 6) or Heidi Turner (in Seasons 20 and 21). Though, given the nature of ''South Park'', it all widely varies per episode. For example, most episodes that focus on Randy will have either Stan or Sharon as the deuteragonist. This includes the entirety of Season 23, which has Randy as the protagonist, Stan and Sharon as the deuteragonists, Cartman keeping his tritagonist spot, but now shared with Kyle, and finally, Towlie as the tetragonist.
* ''WesternAnimation/SpongeBobSquarePants'': Patrick or Squidward are usually the deuteragonist to [=SpongeBob=], the protagonist. The tritagonist depends on the episode (for example, any episode taking place in the Krusty Krab will likely have Mr. Krabs as either a deuteragonist or tritagonist, with Patrick possibly being absent entirely); [=SpongeBob=] is the core element, and the show is about how he relates to the other characters, so the role shifts between his aquatic friends.

* ''WesternAnimation/StarVsTheForcesOfEvil'': This show's main focus is on Star and her home dimension Mewni as well as the adventures with the royal magic wand, but some parts focus on Marco Diaz just as much Star and his character development and how he and Star mature as people.

Although the truth is ironic that in the new Mario movie he doesn't like mushrooms, since in the games he needs them to have power.: The sequel does this trope differently than Avatar. While Korra is the Protagonist of each season the role of deuteragonist, tritagonist and tetratagonist changes depending on season. Tenzin, however, is probably the second most important character overall. Fittingly one of the last scenes of dialogue in the series is of him and Korra talking and discussing her CharacterDevelopment. The results for each season are:

''WesternAnimation/ThePowerpuffGirls1998'': Blossom, Bubbles, and Buttercup or also as [[Kid Hero the trio of little superheroines, The Powerpuff Girls]] are [[MainCharacters the three protagonists of the show]], while their father/creator [[BigGood The Professor Utonium]] serves as the deuteragonist, appearing nearly every episode, setting in motion many events in the series and sometimes becoming the protagonist for an episode.

* ''WesternAnimation/TheLegendOfKorra'': The sequel does this trope differently than Avatar. While Korra is the Protagonist of each season the role of deuteragonist, tritagonist and tetratagonist changes depending on season. Tenzin, however, is probably the second most important character overall. Fittingly one of the last scenes of dialogue in the series is of him and Korra talking and discussing her CharacterDevelopment. The results for each season are:

* ''WesternAnimation/BigCityGreens'': Cricket is the protagonist, but his older sister, Tilly, is the deuteragonist. Although Cricket may sometimes go on adventures without the rest of his family, it’s extremely rare for Tilly not to be there with him.

* ''WesternAnimation/StarTrekLowerDecks'': Ensign Boimler is much more prominent than every other character save the protagonist, Ensign Mariner. He is given the opening monologue of the show's pilot episode (rudely interrupted by Mariner, but it's the thought that counts), and either shares each episode's A-plot with Mariner or gets a B-plot of his own. He even gets an episode named after one of these B-plots: "Much Ado About Boimler".
** The role of Tritagonist is shared between the two other main characters, Ensigns Tendi and Rutherford.

* ''WesternAnimation/TheLoudHouse'': Initially, the Loud sisters were the collective deuteragonists, while Lincoln himself was the protagonist and his best friend Clyde was the tritagonist, whilst the Loud parents were the tetragonists. However, as the series went on, Lori has gradually slipped into the role of deuteragonist, whilst Luna has become the tritagonist.

* ''WesternAnimation/TheLegendOfKorra'': The sequel does this trope differently than Avatar. While Korra is the Protagonist of each season the role of deuteragonist, tritagonist and tetratagonist changes depending on season. Tenzin, however, is probably the second most important character overall. Fittingly one of the last scenes of dialogue in the series is of him and Korra talking and discussing her CharacterDevelopment. The results for each season are:

* ''WesternAnimation/{{Amphibia}}'': Although the show is mainly about a FishOutOfWater, with Anne journeying through the frog world, out of the frogs, Sprig is easily the one the gets the most focus. He’s considered Anne’s best friend and their friendship is one of the show’s main driving points. At the end of [[https://youtu.be/mVSjc4JVULo1:14 Sasha’s Theme Song Takeover]], Sprig and Anne even argue about which one of them is the show’s main character.

* ''WesternAnimation/TheSimpsons'': The family has Homer as the Protagonist and main focus of most episodes with Bart taking second place, which makes him the series' proper Deuteragonist (in the earlier seasons, this was reversed, with Bart being the most focused character instead). Lisa, with her occasional angst, is the Tritagonist and Marge, being the closest to an OnlySaneMan and thus more of a supporting character than the other family members, is the Tetragonist.

* ''WesternAnimation/AdventureTime'': Finn the human and Jake the shape-shifting dog are [[MainCharacters the two protagonists of the show]] , while [[BigGood Princess Bubblegum]] serves as the deuteragonist, appearing nearly every episode, setting in motion many events in the series and sometimes becoming the protagonist for an episode. Ice King and Marceline are tritagonists.