Oin

Oin is  a character on the Once Upon a Time-Hobbit-POTC crossover series. He is portrayed by John Callen and has no Storybrooke counterpart. He is hte brother of Glóin and uncle of Gimli and a cousin of Dwalin and Balin and a healer.

Óin is based on the character of the same name from The Hobbit by author J. R. R. Tolkien.