Woofer is a mundane dog, a large mongrel with dark fur. He was the pet of Sean Baldwin who gained almost human intelligence while in Xanth the first time. He and the Baldwin family helped save Xanth from overexposure of magic dust by containing Happy Bottom after being stranded there.
Woofer migrated to Xanth permanently when he got old with Midrange and Tweeter. He helped locate and now works at Caprice Castle with Picka Bone and Dawn collecting puns. He met another Mundane dog named Rachel who came to Xanth with Bryce. Woofer was attracted to her, but she was needed back in Mundania. A year was compressed into a day when they had Rowena, Wolfe, and an unnamed puppy.