Max is the dog and companion of The Grinch. He debuts as the secondary antagonist in the book How the Grinch Stole Christmas. Max is also a prominent character in the television special, the film adaptation, and the musical adaptation (See The CGI Version of Max). In the book and its adaptations, he acts as The Grinch's reindeer. Max is actually a Dachshund.
In the television special, Max's appearance has slightly changed, mainly in his face. He was voiced by Dallas McKennon, then by Henry Gibson, and now by Frank Welker (narrator of "Max's Playhouse" DVD segment "The Care and Feeding of a Grinch"). His only two speaking lines are "Yipe!" and "Raaaahhh!" performed by Dallas McKennon while being hit by the Grinch's whip. He has brown curved ears and tan fur.
In the live-action film, he is shown to be a nice dog and actually likes Christmas, although his master treats him badly and hates Christmas until the end of the film. He also likes the Grinch even if he didn’t like being forced to carry out the Grinch’s plan to steal Christmas or even being tied up to scare the Who’s (though he just wanted to protect the Grinch by barking). He is played by Kelley the dog.