Pibby

Pibby is an action-horror metafictional tv series created by Dodge Greenley. It's about Pibby who stars in her own educational cartoon whose world gets invaded by a glitchy, eldritch blob, consuming & absorbing all of her friends. Soon, she finds herself traveling to other worlds & discovering that they are also under threat of being assimilated. While her newfound allies doubt that they'll be able to deal with such an apocalyptic problem, she holds out hope that there's a way of beating it, but before then, she'll need to learn a lot more than she bargained for. (Note: This is just an idea for fun.)

Characters

 * Pibby (Nikki Castillo): A cute little girl who stars as the title character of an education show aimed at preschoolers called Learning With Pibby & when the Glitch takes her friends & destroys her world, embarks on a journey across the cartoon multiverse, learning how to survive & eventually, fight back.
 * Alloy Boy (Marcus Toji): The costumed sidekick from a fictional superhero cartoon & after his partner is taken by the Glitch, he's forced to step up as a full-fledged hero alongside Pibby.
 * Melira (Alex Newell): A wealthy feline villainess, who in her own cartoon, menaces a group of innocent young dogs, but, as the corruption spreads, finds herself having to work with & care for Pibby.
 * Bun Bun (Jack Stanton): Pibby's best friend, who ends up getting taken by the Glitch.
 * The Glitch: The glitchy blob-like horror consuming the multiverse & corrupting everything in it.

Demon Slayer

 * Tanjiro Kamado (Zach Aguilar): The main protagonist of Demon Slayer: Kimetsu no Yaiba who was assimilated by the Glitch to save Nezuko & was given tendrils on his back to reference when he was turned into a demon.
 * Nezuko Kamado (Abby Trott): Tanjiro's little sister from Demon Slayer: Kimetsu no Yaiba who became a demon & as a result, can no longer speak & has almost no memories of her life as a human, but survived the Glitch, thanks to Tanjiro's sacrifice & joins Pibby's team with Melira carrying her in Tanjiro's box.
 * Inosuke Hashibira (Bryce Papenbrook): An ally of Tanjiro & Nezuko who Tanjiro was fighting before he got assimilated.

JoJo's Bizarre Adventure

 * Dio Brando (Patrick Seitz): The main antagonist of the JoJo's Bizarre Adventure Parts Phantom Blood & Stardust Crusaders who reveals that The World can affect the Glitch after encountering it himself & joins Pibby's team.
 * Jotaro Kujo (Matthew Mercer): The main protagonist of Stardust Crusaders who was assimilated by the Glitch during his battle with Dio & has Star Platinum sticking out of him all the time.

One Piece

 * Monkey D. Luffy (Colleen Clinkenbeard): The main protagonist of the One Piece franchise who was assimilated due to the Glitch grabbing his hand when he did his Gum-Gum Pistol move & given a body based off his 4th Gear Bound Form.
 * Roronoa Zoro (Christopher Sabat): A member of the Straw Hat Crew who was assimilated due to not being able to cut the Glitch to save Luffy & is fused with Sanji with his swords now serving as wristblades.
 * Vinsmoke Sanji (Eric Vale): The cook of the Straw Hat Crew who was assimilated trying to rescue Nami & is fused with Zoro with the fusion being able to light its feet on fire.
 * Boa Hancock (Lydia Mackay): The Empress of the isolated Amazon Lily & captain of the Kuja Pirates who the Glitch couldn't assimilated without getting its minions petrified after trying to add her & joins Pibby's team to save Luffy.

My Hero Academia

 * Deku (Justin Briner): The main protagonist of My Hero Academia who was assimilated trying to save civilians after losing everyone & is given an appearance based off his Dark Deku costume.
 * Uravity (Luci Christin): 1 of Deku's classmates who was assimilated after lifting Deku & Froppy into the air to buy them time & is fused with Froppy & Creati as she sticks out of Froppy & her right arm remains free, so the Glitch can use her Zero Gravity Quirk to make it easier for it assimilate everyone.
 * Froppy (Monica Rial): Another 1 of Deku's classmates who was assimilated after tossing Deku to safety & is fused with Uravity & Creati with her being the base, spitting out Glitch blobs with her mouth & using her tongue to grab victims.
 * Creati (Colleen Clinkenbeard): The vice president of Deku's class who was assimilated after telling Deku, Uravity & Froppy to run & is fused with the latter 2 with her left arm having her bo staff sticking out of her palm.

RWBY

 * Ruby Rose (Lindsay Jones): The main protagonist of RWBY who was assimilated by the Glitch & the Crescent Rose is fused to her left arm, while her right arm was turned into a scythe made of glitches, while also having her eyes silver like if she's using her silver eyes.
 * Weiss Schnee (Kara Eberle): 1 of the main protagonists of RWBY who was assimilated by the Glitch & the Myrtenaster is fused to her left arm.
 * Blake Belladonna (Arryn Zech): 1 of the main protagonists of RWBY who was assimilated by the Glitch with her now being to create clones out of the Glitch itself.
 * Yang Xiao Long (Barbara Dunkleman): 1 of the main protagonists of RWBY who was assimilated by the Glitch with a glitch arm filling for her right prosthetic arm.
 * Neopolitan (Casey Lee Williams): An antagonist of RWBY who joined Pibby's team due to escaping the Glitch with her illusion with Pibby having Alloy Boy & Melira learn how to use sign language to talk to her.

Miscellaneous

 * Son Goku (Sean Schemmel): The main protagonist of the Dragon Ball franchise who was assimilated by the Glitch due to him not realizing that it can absorb ki & was given a glitch body akin to the Oozaru transformation.
 * Naruto Uzumaki (Maile Flanagan): The main protagonist of the Naruto franchise who was assimilated by the Glitch & was given a glitch body akin to his Nine-Tails Chakra mode.
 * Homura Akemi (Cristina Vee): A main character from Puella Magica Madoka Magica who was assimilated by the Glitch, while trying to save Madoka & was given a glitch body akin to her Witch form.
 * Saitama (Max Mittelman): The main protagonist of One Punch Man who joined Pibby's team since his 1 punch was able to defeat any minion the Glitch threw at him.
 * Sucy Manbavaran (Rachelle Hager): 1 of the main protagonists of Little Witch Academia who was assimilated by the Glitch & has glitch essence in the form of mushrooms growing on her, which can release glitch spores like mushrooms would.
 * Ryūko Matoi (Erica Mendez): The main protagonist of Kill la Kill who was assimilated by the Glitch & was transformed into her Berserk form, but with both Scissor Blades on her arms.
 * Megumin (Erica Mendez): 1 of the main protagonists of KonoSuba: God's Blessing on this Wonderful World! who was assimilated by the Glitch due to collapsing after using Explosion on it.
 * Retsuko (Erica Mendez): The main protagonist of Aggretsuko who was assimilated & given glitch effects on her face to reference the many times she started singing death metal.
 * Komi Shouko: The main protagonist of Komi Can't Communicate who was assimilated by the Glitch due to being unable to warn everyone.

Miscellaneous

 * Homer (Dan Castellaneta): The main protagonist of The Simpsons who was assimilated due to strangling Bart after he got assimilated, which the Glitch to drag him into it.

South Park

 * Stan Marsh (Trey Parker): 1 of the main protagonists of South Park who was assimilated with the Glitch & fused with Kyle, Cartman & Kenny into a glitch body.
 * Kyle Broflovski (Matt Stone): 1 of the main protagonists of South Park who was assimilated with the Glitch & fused with Stan, Cartman & Kenny into a glitch body.
 * Eric Cartman (Trey Parker): 1 of the main protagonists of South Park who was assimilated with the Glitch & fused with Stan, Kyle & Kenny into a glitch body.
 * Kenny McCormick (Matt Stone): 1 of the main protagonists of South Park who was assimilated with the Glitch as well as the first one to & fused with Stan, Kyle & Cartman into a glitch body.

Hazbin Hotel

 * Charlie (Jill Harris): The main protagonist of Hazbin Hotel who was assimilated by the Glitch when trying to save Angel Dust.
 * Vaggie (Monica Franco): Charlie's girlfriend from Hazbin Hotel who was assimilated by the Glitch after trying to save Charlie & is seen with her spear out, though covered in glitches.
 * Angel Dust (Michael Kovach): Another character from Hazbin Hotel who was assimilated by the Glitch after seeing Cherri Bomb get assimilated & was given a glitch body akin to his full demon form.

Family Guy

 * Stewie Griffin (Seth MacFarlane): 1 of the main protagonists of Family Guy who joins Pibby's team to escape the Glitch & save the other Griffins.
 * Brian Griffin (Seth MacFarlane): 1 of the main protagonists of Family Guy who joins Pibby's team to escape the Glitch & save the other Griffins.

My Little Pony: Friendship is Magic

 * Twilight Sparkle (Tara Strong): The main protagonist of My Little Pony: Friendship is Magic who was assimilated by the Glitch & made to resemble a ponified version of Midnight Sparkle.
 * Applejack (Ashleigh Ball): 1 of the main protagonists of My Little Pony: Friendship is Magic who was assimilated by the Glitch.
 * Fluttershy (Andrea Libman): 1 of the main protagonists of My Little Pony: Friendship is Magic who was assimilated by the Glitch & was made to resemble Flutterbat with her ears & wings being made more bat-like.
 * Pinkie Pie (Andrea Libman): 1 of the main protagonists of My Little Pony: Friendship is Magic who was assimilated by the Glitch & has her hair deflated like when she's depressed.
 * Rarity (Tabitha St. Germain): 1 of the main protagonists of My Little Pony: Friendship is Magic who was assimilated by the Glitch & made to resemble Nightmare Rarity.
 * Rainbow Dash (Ashleigh Ball): 1 of the main protagonists of My Little Pony: Friendship is Magic who was assimilated by the Glitch & made to resemble Evil Pie Hater Dash.
 * Trixie Lulamoon (Kathleen Barr): A former traveling magician turn counselor who joins Pibby's team due to managing to escape the Glitch after failing to save Starlight.
 * Sunset Shimmer (Rebecca Shoichet): The main protagonist of the Equestria Girls franchise who was assimilated by the Glitch & given a glitch body akin to her demon form from the original Equestria Girls movie.
 * Starlight Glimmer (Kelly Sheridan): Trixie's best friend who was assimilated by the Glitch & was given a staff made of glitches akin to the Staff of Sameness.
 * Celestia (Nicole Oliver): The former rule of Equestria who was assimilated by the Glitch & fused with Luna while being transformed into Daybreaker.
 * Luna (Tabitha St. Germain): Celestia's younger sister who was assimilated by the Glitch & fused with Celestia while being transformed into Nightmare Moon.
 * Cadence (Britt McKillip): Twilight's mother-in-law who was assimilated by the Glitch, while protecting Flurry Heart after Shining Armor got assimilated too.
 * Discord (John de Lancie): A former antagonist of My Little Pony: Friendship is Magic who joins Pibby's team to atone for getting Cozy, Chrysalis, Sombra & Tirek together to build up Twilight's confidence.
 * Derpy (Tabitha St. Germain): A mail pony who joins Pibby's team after they rescued her from the Glitch.

Netflix

 * BoJack (Will Arnett): The main protagonist of BoJack Horseman who joins Pibby's team after the Glitch invades Hollywoo.
 * Teodora Villaviciencio (Annemarie Blanco): A main character of the Legend Quest franchise who was assimilated by the Glitch.
 * Maurice (Nick Kroll): A reoccurring character in Big Mouth who was assimilated by the Glitch.
 * Bean (Abbi Jacobson): The main protagonist of Disenchanted who was assimilated by the Glitch.
 * Hilda (Bella Ramsey): The main protagonist of Hilda who was assimilated by the Glitch & given a Glitch Body akin to The Mara.
 * Kid (Jack Fisher): The main protagonist of Kid Cosmic who was assimilated by the Glitch & has all 13 Stones of Power on him laid out like how where Fantos placed each of them when he had all of them.
 * Reagan Ridley (Lizzy Caplan): The main protagonist of Inside Job who was assimilated by the Glitch due to being too busy trying to figure out which conspiracy theory was it connected to.

Miscellaneous

 * Mickey Mouse (Bret Iwan): The mascot of Disney who was assimilated by the Glitch.
 * Kim Possible (Christy Carlson Romano): The main protagonist of Kim Possible who was assimilated by the Glitch & has a piece of it on her forehead to reference when she was subject to the Neuro-compliance chip.
 * Jake Long (Dante Basco): The main protagonist of American Dragon: Jake Long who was assimilated by the Glitch.
 * Wander (Jack McBrayer): The main protagonist of Wander Over Yonder who was assimilated by the Glitch.
 * Milo Murphy (Weird Al Yankovic): The main protagonist of Milo Murphy's Law who joins Pibby's team due to how his luck saved him from the Glitch.
 * Scrooge McDuck (David Tennant): The main protagonist of the DuckTales franchise who was assimilated by the Glitch & who Melira says reminds her of the master of the dogs she always deals with.
 * Cricket Green (Chris Houghton): The main protagonist of Big City Greens who was assimilated by the Glitch.

Phineas & Ferb

 * Phineas Flynn (Vincent Martella): 1 of the main protagonists of Phineas & Ferb who was assimilated by the Glitch & fused with Ferb not unlike what happened at the end of the episode Canderemy.
 * Ferb Fletcher (Thomas Brodie-Sangster): 1 of the main protagonists of Phineas & Ferb who was assimilated by the Glitch & fused with Phineas not unlike what happened at the end of the episode Canderemy.
 * Candace Flynn (Ashley Tisdale): Phineas & Ferb's older sister who was assimilated when she tried to bust them.
 * Perry (Dee Bradley Baker): A secret agent posing as Phineas & Ferb's pet platypus who joins Pibby's team after learning everyone in the O.W.C.A. have been assimilated.
 * Dr. Doofenshmirtz (Dan Povenmire): The main antagonist of Phineas & Ferb who, like Perry, joins Pibby's team after seeing Norm & Vanessa assimilated by the Glitch.

Gravity Falls

 * Dipper Pines (Jason Ritter):
 * Mabel Pines (Kristen Schaal):
 * Stanley Pines (Alex Hirsch):
 * Wendy Corduroy (Linda Cardellini):
 * Soos (Alex Hirsch):
 * Stanford Pines (J.K. Simmons):
 * Bill Cipher (Alex Hirsch):

Star vs. The Forces of Evil

 * Star Butterfly (Eden Sher):
 * Marco Diaz (Adam MacArthur):
 * Moon Butterfly (Grey Griffin):
 * Eclipsa Butterfly (Esmé Bianco):
 * Ludo (Alan Tudyk):
 * Toffee (Michael C. Hall):

Amphibia

 * Anne Boonchuy (Brenda Song):