Suggestions by @axiomman

Felicity Jones

as Hera in Hades and Persephone

Tom Holland

as Hermes in Hades and Persephone

Jason Momoa

as Poseidon in Hades and Persephone

Henry Cavill

as Zeus in Hades and Persephone

Ben Barnes

as Hades in Hades and Persephone

Phoebe Tonkin

as Persephone in Hades and Persephone

Robert Pattinson

as Hades in Hades and Persephone

Ben Affleck

as Zeus in Hades and Persephone

Mothra (MonsterVerse)

as Dragon in Shrek: N Sane

Mothra (Showa)

as Dragon in Shrek: N Sane

Strong Mad

as Three Little Pigs in Shrek: N Sane

Homestar Runner

as Three Little Pigs in Shrek: N Sane

Strong Bad

as Three Little Pigs in Shrek: N Sane

Sam (Sam and Max)

as Big Bad Wolf in Shrek: N Sane

Fred (MY LEG!)

as The Other Fairy Tale Creatures in Shrek: N Sane

Bebop and Rocksteady

as Thelonious in Shrek: N Sane

Rayman

as Gingy in Shrek: N Sane

Wabuu

as Magic Mirror in Shrek: N Sane

Skeletor

as Lord Farquaad in Shrek: N Sane

She-Hulk (Jennifer Walters)

as Fiona in Shrek: N Sane