The Gruffalo (character)

The Gruffalo was the titular character of The Gruffalo.

He was described within the book as a "creature with terrible claws, Terrible teeth in his terrible jaws". (TV: The Hungry Earth)

When Sarah Jane Smith was reading an article from the Ealing Echo about an alien that the Shopkeeper claimed to have seen, Clyde jokingly compared its description to the character. (TV: Lost in Time)

Information from invalid sources
The Gruffalo appeared behind a window as two individuals prepared to kiss under mistletoe. (NOTVALID: Consider Yourself One Of Us...)