Chunk the Boar is a mechanic, the surrogate brother of Vix, and the best friend and surrogate uncle of Spark, and one of the secondary protagonists of "Spark: A Space Tail." He is easy-going, and comical. and likes to eat. He is very supportive to both, Spark and Vix. He is also very understanding towards them and even makes sure that nothing in this universe will break Spark and Vix's bond for each other.