Finn

Finn was a stormtrooper who answered to FN-2187. It was the only name he had ever had, but when he did the right thing and rescued Poe, who asked his name, he was told he would be known as Finn, which he was greatful for.

He later tells Captain Phasma he is no longer one of them and one of his former co-workers yells at him, calling him a traitor. Apart from blasters, Finn does show some ability with a lightsaber, although not to the extent which Rey does. He also seems to have feelings for her, with holding her hands and such.