emotional support character
A character in any media form, usually from a TV show, that a fan feels close to emotionally and becomes their favorite character on the show. They would hypothetically die for that character because of how highly they think of them and would protect them at all costs.
"I cried when Charlie died in Supernatural"
"She's just a character on a TV show. It's not that deep"
"But she's my emotional support character"
"She's just a character on a TV show. It's not that deep"
"But she's my emotional support character"