[Editor’s Note: The above video was released after this article was published.]
Kotaku.com is reporting that the above image is indeed Darth Vader’s secret apprentice in Soulcalibur IV. You’ll see him on both the PS3 and X360 versions. So we can say that the above image is from the X360 because Yoda’s in the pic. I do not believe the above image is actual gameplay, but more of an in-game video due to the lack of health bars etc.
No major noticable characteristics on ‘The Apprentice’, which is odd mostly because every Star Wars character does.. then again what did Luke have? …a whining voice?