Suggestions by @shanteldawkins

Johnny Depp

as Villian in Scooby Doo

Austin Butler

as Fred in Scooby Doo

Ryan Eggold

as Shaggy in Scooby Doo

Emma Stone

as Velma in Scooby Doo

Blake Lively

as Daphne in Scooby Doo

Tony Danza

as Scooby Doo in Scooby Doo