There's some casting confusion when it comes to who played what in Return of the Jedi; Alan Harris, Bossk's original actor was on the set of Return of the Jedi, so it would be assumed that he played Bossk, but that isn't necessarily true. According to a recent interview with Trevor Butterfield (an actor who played multiple parts in the movie), he wore the Bossk costume during some scenes because Harris was doubling for Jeremy Bulloch as Boba Fett. Does anyone have any clarification as to which scenes Harris and Butterfiend played Bossk? When asked about ROTJ, Harris still says he was Bossk during at least one scene, so I think it's possible that he was played by two actors. In a related note, what scene was it that Harris played Boba? Personally, it sounds like Trevor Butterfield played Bossk during the palace scenes, while Harris played Boba during the Lapti Nek sequence. Alan Harris could have also played Bossk during the Sail Barge scenes.
Bossk on Jabba's Sail Barge Actor Alan Harris portrayed the role of Bossk in Star Wars Episode V: The Empire Strikes Back. Harris also plays Bossk in Star Wars Episode VI: Return of the Jedi and LEGO Star Wars II: The Original Trilogy albeit uncredited. Dee Bradley Baker voiced Bossk in Star Wars: The Clone Wars TV series.
Yes, but from these accounts, I believe Butterfield also played Bossk in ROTJ. http://starwarsinterviews1.blogspot.com/2012/10/trevor-butterfield-lieutenant-blount.html Autographs and such haven't really been much of an indication: I've seen both both sign pictures from either the palace or the Sail Barge. They couldn't have both played him during those scenes. And I know some fans are really anal about having a an autographed piece be from the actor that was playing in that scene. I mean, I've seen Jeremy Bulloch autograph pictures where it was a double in the Fett armor. EDIT: Here's an example of what I mean:
IMDb only lists Butterfields special effects credits and Alan Harris is not credited for the role of Bossk in ROTJ. I'm not sure if this is because Bossk was kind of hidden in the background or maybe originally intended to be a different character. They may have reused the costume and the character was retconned to be Bossk.
While the role was cut down considerably, it was always intended to be Bossk; hence why Alan Harris was originally expected to return to the role. If the costume was any different, I could see an argument for a different character, but I've always seen him cited as Bossk.
http://starwarsinterviews1.blogspot.com/2010/05/alan-harris-interview-bossk-star-wars.html The Alan Harris interview isn't any help either. There's no mention of his playing Bossk in ROTJ. I must admit, this one has me stumped.
I think I have somewhat of an answer. Alan Harris was known for his height, and was taller than Boba Fett in Empire. In the picture in Jabba's castle, it would appear that Bossk is shorter than Boba. With that reasoning, I say that Butterfield plays him there, and Alan Harris plays him on the sail barge scenes.
Alan Harris was initial picked to wear the Fett costume in ESB but then he decided to go with Bossk instead....I've only ever read of Jeremy Bulloch and stuntman Glen Randall wearing the suit in the original ROTJ production?