Suggestions by @bumbleprime

Charlie Day

as Kevin Lloyd in Scooby-Doo! Meets The Transformers (When Dogs Fly)

Gary Oldman

as Hudson Franklin in Scooby-Doo! Meets The Transformers (When Dogs Fly)

Bailee Madison

as Lily Brooks in Scooby-Doo! Meets The Transformers (When Dogs Fly)

James McAvoy

as Aaron Brooks in Scooby-Doo! Meets The Transformers (When Dogs Fly)

Frank Welker

as Scooby-Doo in Scooby-Doo! Meets The Transformers (When Dogs Fly)

Mindy Cohn

as Velma Dinkley in Scooby-Doo! Meets The Transformers (When Dogs Fly)

Matthew Lillard

as Shaggy Rogers in Scooby-Doo! Meets The Transformers (When Dogs Fly)

Grey DeLisle

as Daphne Blake in Scooby-Doo! Meets The Transformers (When Dogs Fly)

Frank Welker

as Fred Jones in Scooby-Doo! Meets The Transformers (When Dogs Fly)

Alpha Trion

as Fancasting in Best of James Earl Jones

Tom Hanks

as Ratchet in Movie Celebrities As Live Action Characters

Tara Strong

as Slipstream in Scooby-Doo! Meets The Transformers (Space Alien Station)

Tom Kenny

as Frenzy in Scooby-Doo! Meets The Transformers (Space Alien Station)

Dee Bradley Baker

as Rumble in Scooby-Doo! Meets The Transformers (Space Alien Station)

Jim Cummings

as Thundercracker in Scooby-Doo! Meets The Transformers (Space Alien Station)

Tom Kenny

as Skywarp in Scooby-Doo! Meets The Transformers (Space Alien Station)

Dee Bradley Baker

as Astrotrain in Scooby-Doo! Meets The Transformers (Space Alien Station)

Dan Castellaneta

as Octane in Scooby-Doo! Meets The Transformers (Space Alien Station)

Jess Harnell

as Barricade in Scooby-Doo! Meets The Transformers (Space Alien Station)

Frank Welker

as Soundwave in Scooby-Doo! Meets The Transformers (Space Alien Station)