Elf's best friend
"Now the chief of the wolf hounds that followed Celegorm was named Huan. He was not born in Middle-earth, but came from the Blessed Realm; for Oromë had given him to Celegorm long ago in Valinor, and there he had followed the horn of his master, before evil came. Huan followed Celegorm into exile, and was faithful; and thus he too came under the doom of woe set upon the Noldor."
For shirebound, who wanted to see one of my dogs as Huan.