Suggestions by @themanhimself

Kate Beckinsale

as Chiron (female) in Percy Jackson Genderswap

Kate Winslet

as Poseidon (Female) in Percy Jackson Genderswap

Teagan Croft

as Lucy Castellan in Percy Jackson Genderswap

China Anne McClain

as Greta Underwood in Percy Jackson Genderswap

Dylan O'Brien

as Anakin Chase in Percy Jackson Genderswap

Hailee Steinfeld

as Tracy Jackson in Percy Jackson Genderswap

Hayden Christensen

as The Dragon Slayer in Film The Movie

Bill Hader

as Lover in Film The Movie

John Flickinger

as Mad Jerry in Film The Movie

Krysten Ritter

as Evil Charlize in Film The Movie

Sebastian Stan

as Evil Frank in Film The Movie

Disturbed

as Composer in Film The Movie

Metallica

as Composer in Film The Movie

Judas Priest

as Composer in Film The Movie

Lorde

as Composer in Film The Movie

Danny Elfman

as Composer in Film The Movie

Taylor Momsen

as Composer in Film The Movie

Halestorm

as Composer in Film The Movie

James Marsters

as King of the Damned in Film The Movie

Smash Mouth

as Composer in Film The Movie