Liz and Jack
Jack had never experienced Christmas. It wasn't something they did in Oz. The whole idea of it appealed to him, though, and the more he was exposed to it the more he liked it.
"I don't understand the significance of putting trinkets on a tree," he said to Liz. She'd helped him when he'd first arrived, and because of her he had a more functioning set of prosthetic for his arm and his legs, at least. His heart was a whole other matter. No one had seen anything like what he had, and he wasn't willing to let anyone touch it for fear of ceasing to exist.