Fighting games have a grand tradition of crossovers. Battletoads and Double Dragon, Marvel and Capcom, DoA and Halo, and now Star Wars characters will fill in the guest character slot in Soul Calibur IV according to 1UP.

Soul Calibur II had some very memorable guest characters, including Link from The Legend of Zelda. Obviously trying to tap into a phenomenom much bigger than just games, Namco has announce Yoda and Darth Vader will be playable characters. Even more interesting is the idea that MORE Star Wars characters and other guests may be announced and/or available via PS3 and Xbox 360 Download services.

UPDATE: Apparently Vader is exclusive to PS3, and Yoda is exclusive to Xbox 360. Video has also been added above