Wallace and Gromit/Up

Adult Simba (from The Lion King) as Carl Fredricksen

Adult Nala (from The Lion King) as Ellie Fredricksen

Wallace as Russell

Gromit as Dug

Boo (from Monsters, Inc.) as Kevin

Zira (from The Lion King II) as Charles Muntz

Scar (from The Lion King) as Alpha

Crush (from Finding Nemo) as Beta

Duncan (from Thomas) as Gamma

Don Lino (from Shark Tale) as Tom the Foreman

Timon as George

Pumbaa as AJ

Neff as Omega

Mr. Tweedy (from Chicken Run) as Campmaster Strauch