Emmet Brickowski
Emmet's first, and so far only, appearance in films not related to the original story was in the first spin-off film, The Lego Batman Movie. In the beginning of the film when a local Gotham News Anchorman is explaining the results of Joker's bomb blast, footage of Emmet falling into the Infinite Abyss of Nothingness is shown to illustrate what would happen.