Cast:

Brenda

Miles

Bonnie

Loretta

Haruna

Mirandos

Bloger

M.E.R.C

Ash

Pikachu

Serena

Clement

Deddna

Leo

Donnie

Raph

Mikey

April

Casey

Karia

Shini

Fluttershy

Sunset Shimmer

Sci-fi Twilight

Rainbowdash

Rarity

Applejack

Pinkie Pie

Ryder

Chase

Marshall

Rubble

Rocky

Zuma

Skye

Everest

Tracker

Tuck

Ella

Katie

Alex

Carlos

Hiro

Baymax

Gogo

Honeylemon

Wasibe

Fred

Megan(Big Hero 6 the series)

Ruby (RWBY)

Weiss (RWBY)

Blake (RWBY)

Yang (RWBY)

Jaune (RWBY)

Nora (RWBY)

Lie Ren (RWBY)

Sun (RWBY)

Neptune (RWBY)

Arnold

Gerald

Helga

Phoebe

Sid

Stinky

Harold

Rhonda

Eugene

Corey

Laney

Kin

Kon

Tommy

Dil

Angelica

Susie

Chuckie

Kimi

Lili

Phil

Danny

Sam

Tucker

Jazz

Daniel

Lincoln

Lori

Leni

Luna

Luan

Lynn

Lucy

Lana

Lola

Lisa

Lily

Ronnie Ann

Bobby

Carlota

CJ

Carl

Carlitos

Finn

Jake

Princess Bubblegum

Marceline

Flame Princess

Phineas

Ferb

Candance

Perry the platapus

Isabella

Baljeet

Buford

Jeremy

Stacy

Vanessa

Irving

The Fireside girls (can't add all of their names)

Dipper

Mabel

Candy

Grenda

Pacifica

Wendy

Soos

Stan

Ford

Wonder Woman(DC Superhero Girls)

Supergirl(DC Superhero Girls)

Batgirl(DC Superhero Girls)

Bumblebee(DC Superhero Girls)

Poison Ivy(DC Superhero Girls)

Katana(DC Superhero Girls)

Harley Quinn(DC Superhero Girls)

Robin(Teen Titans original)

Starfire(Teen Titans original)

Beast Boy(Teen Titans original)

Raven(Teen Titans original)

Cyborg(Teen Titans original)

Jimmy

Carl

Sheen

Liby

Cindy

Timmy

Comos

Wanda

Poof

Chole

AJ

Chester

Spongebob

Patrick

Mr. Krab

Squidward

Sandy

Tai Kamiya (season 2)

Kari Kamiya (season 2)

Matt Ishida (season 2)

T.K. Takaishi (season 2)

Sora Takenouchi (season 2)

Izzy Izumi (season 2)

Mimi Tachikawa (season 2)

Joe Kido (season 2)

Davis Motomiya (season 2)

Yolei Inoue (season 2)

Cody Hida (season 2)

Ken Ichijouji (season 2)

Agumon (season 2)

Gabumon (season 2)

Biyomon (season 2)

Tentomon (season 2)

Palmon (season 2)

Gomamon (season 2)

Patamon (season 2)

Gatomon (season 2)

Veemon (season 2)

Hawkmon (season 2)

Armadillomon (season 2)

Wormmon (season 2)

Guest star in flashbacks:

Tadashi

Pyrrha (RWBY)

Master Splinter

Villains:

Bretha

Mildred

Bonniabella

La Sombra

Commander Sapphire

Vlad

Ladybird

Harold (Paw patrol)

Fishface

Copy cat(Paw patrol)

(If your all wonder, all the characters survived the Thanos snap and their worlds survived too.)