Suggestions by @bumbleprime

Ryan Reynolds

as Hot Rod in Scooby-Doo! Meets The Transformers

Jeffrey Combs

as Ratchet in Scooby-Doo! Meets The Transformers

Amy Adams

as Arcee in Scooby-Doo! Meets The Transformers

Dwayne Johnson

as Cliffjumper in Scooby-Doo! Meets The Transformers

Zac Efron

as Bumblebee in Scooby-Doo! Meets The Transformers

Peter Cullen

as Optimus Prime in Scooby-Doo! Meets The Transformers

Eiza González

as Marissa Faireborn in Scooby-Doo! Meets The Transformers

George Clooney

as General H. Dawson in Scooby-Doo! Meets The Transformers

Kumail Nanjiani

as Elijah Goodwin in Scooby-Doo! Meets The Transformers

Asher Angel

as Zac Cooper in Scooby-Doo! Meets The Transformers

Jennifer Aniston

as Lisa Cooper in Scooby-Doo! Meets The Transformers

Paul Rudd

as Agent Jason Andrews in Scooby-Doo! Meets The Transformers

Colin Firth

as Professor Davis in Scooby-Doo! Meets The Transformers

Frank Welker

as Scooby-Doo in Scooby-Doo! Meets The Transformers

Matthew Lillard

as Shaggy Rogers in Scooby-Doo! Meets The Transformers

Kate Micucci

as Velma Dinkley in Scooby-Doo! Meets The Transformers

Grey DeLisle

as Daphne Blake in Scooby-Doo! Meets The Transformers

Frank Welker

as Fred Jones in Scooby-Doo! Meets The Transformers

Amy Adams

as Fiona in Shrek Saga Live Action

Kevin Hart

as Donkey in Shrek Saga Live Action