SleenCanonLegendsInfinities Non-canon appearances LEGO Star Wars: The Skywalker SagaSources Star Wars: Absolutely Everything You Need to KnowStar Wars: Complete LocationsStar Wars: Galactic AtlasStar Wars: Geektionary: The Galaxy from A - ZAppearancesStar Wars: Episode V The Empire Strikes Back (First appearance) (Unknown)Unknown UnknownNone"The Trial of Dagobah" — Age of Rebellion Special 1 (Unknown)Unknown UnknownNone