Suggestions by @blobby9000

Mike Myers

as Book Shrek in Shrek 5: Into The Dreamverse

Kristen Dunst

as Fiona in Shrek 5: Into The Dreamverse

Tobey Maguire

as Big Chungus in Shrek 5: Into The Dreamverse

Jerry Seinfeld

as Barry B. Benson in Shrek 5: Into The Dreamverse

John Cena

as Matt in Shrek 5: Into The Dreamverse

Ben Schwartz

as Sonic in Shrek 5: Into The Dreamverse

Brad Pitt

as Metro man in Shrek 5: Into The Dreamverse

Jonah Hill

as Titan in Shrek 5: Into The Dreamverse

Mike Myers

as Shrek Jesus in Shrek 5: Into The Dreamverse

Josh Brolin

as Thanos in Shrek 5: Into The Dreamverse

Ringo Starr

as Thomas The Tank Engine in Shrek 5: Into The Dreamverse

Will Ferrell

as Megamind in Shrek 5: Into The Dreamverse

Mike Myers

as Evil Shrek in Shrek 5: Into The Dreamverse

Arnold Schwarzenegger

as Shaggy in Shrek 5: Into The Dreamverse

Will Smith

as Oscar in Shrek 5: Into The Dreamverse

Eddie Murphy

as Donkey in Shrek 5: Into The Dreamverse