Dr. Seuss/Wallace and Gromit

The Lorax as Wallac

Sam-I-Am as Gromit

Alvin the Alien as The Moon Machine

The Grinch as Feathers McGraw

The Yapper-Nap as Shaun the Sheep

Pam-I-Am as Wendolene

Sarah Hall-Small as Lady Tottingham

Vlad Vladikoff as Preston

Jet Engine (from Thomas & Friends) as Wrong Trousers

Joey as Vicar

Yertle the Turtle as Victor

Tex (from Theodore Tugboat) as Phillip

Jane Kangaroo as Piella

Horton the Elephant as Hutch

Cindy-Lou Who as Fluffles

Matthew Katroon as PC Mack

Thidwick the Big-Hearted Moose as Mr. Mulch

The White Tufted Bird as Mrs. Mulch