Óin

Óin is a character in The Hobbit and The Lord of the Rings.

Background
Óin is the son of Gróin and the brother of Glóin, and the uncle of Gimli. It was rumored that he delivered his nephew, Gimli and helped other mothers with their children.

Official Biography
"Along with his brother Gloin, Oin is a distant cousin of Thorin Oakenshield. A brave Northern Dwarf, Oin joins The Company of Thorin Oakenshield out of a sense of loyalty to his kin, and also because he has a substantial sum of money invested in the venture. Well read with an enquiring mind, Oin is the healer among the Company, often applying an herbal salve of his own invention – which has since come to be known as ‘ointment’ after its maker."

- Official biography

Personality
Óin is a very high-intelligent individual and descended from the royal line of Durin. Óin is a very talented healer, known for inventing and making what he calls "ointment," partially named after himself. Prior the entire journey, Óin already had strong knowledge of the signs that it was time for the Dwarves to return home.For example, he had revealed that it was time for the Dwarves to return home, having read the signs of the ravens returning to the Lonely Mountain.He is very protective of his patients, as he was highly dedicated in saving Kíli with whatever medicine they could get.

Óin is also very close with his brother, who sometimes looks out for his half-deaf brother due to that condition. However, he can actually use a staff fir a weapon without trouble. Óin also has a dislike for Elven music and green foods, but loves to sing and listen to Dwarven music.

Physical Appearance
Óin is an elderly dwarf who wears a grey cloak with brown eyes and grey hair. He usually carries around a horn that he uses as a hearing aide. He wears weapon braces, striped trousers, grey fur boots and fingerless gloves.

The Hobbit (1977 film)
Óin's role in the film remains the same as it was in the novel. He and the dwarves (besides Thorin, Balin, Bombur and Dori) usually speaks with the other dwarves simultaneously.

It is also unknown if Óin was one of the dwarves who died in the Battle of Five Armies.

Middle-Earth Film Saga
In the films directed by Peter Jackson, Óin is portrayed by John Callen. He appears as one of the protagonists of An Unexpected Journey and a supporting character in The Desolation of Smaug and The Battle of the Five Armies.