Suggestions by @eyricelovely

Aiden (Disventure Camp)

as Carrie White in Carrie (1976) (if fictional characters but genderswap made it)

Marissa (Disventure Camp)

as Chris McKay in Euphoria (if fictional characters but genderswap made it)

Leshawna (Total Drama)

as Chris McKay in Euphoria (if fictional characters but genderswap made it)

Fiore (Disventure Camp)

as Ashtray in Euphoria (if fictional characters but genderswap made it)

Nancy Wheeler

as Ethan Daley in Euphoria (if fictional characters but genderswap made it)

Celia (Mermaid Magic)

as Ethan Daley in Euphoria (if fictional characters but genderswap made it)

Ally (Disventure Camp)

as Ethan Daley in Euphoria (if fictional characters but genderswap made it)

Rosa Maria (Disventure Camp)

as Elliot in Euphoria (if fictional characters but genderswap made it)

Sasha (Mermaid Magic)

as Elliot in Euphoria (if fictional characters but genderswap made it)

Sophia Mendoza (Unicorn Academy)

as Elliot in Euphoria (if fictional characters but genderswap made it)

Andrew Clark

as Cassie Howard in Euphoria (if fictional characters but genderswap made it)

Nick (Disventure Camp)

as Cassie Howard in Euphoria (if fictional characters but genderswap made it)

Jason Carver

as Cassie Howard in Euphoria (if fictional characters but genderswap made it)

Cameron (Total Drama)

as Gia Bennett in Euphoria (if fictional characters but genderswap made it)

Lucas Sinclair

as Gia Bennett in Euphoria (if fictional characters but genderswap made it)

Octus

as Kat Hernandez in Euphoria (if fictional characters but genderswap made it)

Lynda (Disventure Camp)

as Cal Jacobs in Euphoria (if fictional characters but genderswap made it)

Leah Kilbourne (Flying)

as Nate Jacobs in Euphoria (if fictional characters but genderswap made it)

Max Mayfield

as Fezco in Euphoria (if fictional characters but genderswap made it)

Aiden (Disventure Camp)

as Jules Vaughn in Euphoria (if fictional characters but genderswap made it)