19. Chewbacca
The copilot of the Millennium Falcon, Chewbacca owes a life debt to Han Solo due to Solo freeing him from slavery. Years later the duo was hired by Ben Kenobi for passage to the Alderaan system and were subsequently involved in nearly every aspect of the Galactic Civil War. He fought in many battles during the war, most notably the Battle of Endor, and became the most famous Wookie in the Galaxy although he never stopped being the copilot of the Millennium Falcon. Years later, at the very beginning of the Yuuzhan Vong invasion, Chewie was killed when the Yuuzhan Vong collided a moon with the planet of Sernpidal. Despite taking all the racist comments from every other onscreen character(Leia calls him a walking carpet, Han calls him a fuzzball), Chewbacca is probably the most memorable alien from the original series. If there's anyone who's ever seen the movies who didn't want a Wookie best friend afterwards, they probably were just terrible people.