The crossword solution for the term SKYWALKER FOE is VADER, a five-letter word. Vader is a fictional character from the Star Wars franchise, and is the main antagonist of the original trilogy. He is the father of Luke Skywalker, and is a powerful Sith Lord who serves as the Emperor's enforcer. Vader is one of the most iconic villains in film history, and is widely recognized as one of the greatest movie villains of all time.