Emmet Brickowski
At first, Emmet is stubborn and constantly fails to do things right when they have to be, being used to following instructions, unimpressive to the Master Builders. But when he discovers that everything in the Lego world is from the imagination of a child with amazing creativity, he finds his own inner power of creativity and becomes a true Master Builder. He is sent back to the Lego world where he makes a speech to Lord Business and saves the world celebrating with his new friends. Wyldstyle becomes his girlfriend, with Batman's blessing, at the end of the film.