Lord of the Rings character Gaf?

There isn't a character named "Gaf" in The Lord of the Rings. It's possible you're thinking of a character from a different fantasy work or perhaps misremembering a character's name.

Could you provide any more details about the character you're thinking of?

For example:

* What race is the character? (Hobbit, Elf, Dwarf, Man, etc.)

* What is their role in the story? (Warrior, wizard, servant, etc.)

* What is their appearance like?

* What are their most notable traits?

With more information, I might be able to help you figure out the correct name or identify a character who shares some similarities with your description.