One of the most iconic movie villains of all time, Darth Vader - Sith Lord, sand-hater and youngling-slayer - has remained an enduring part of popular culture since his introduction in Episode IV, over 40 years ago.
From his epic voice to his oh-so-shiny helmet, Vader is an instantly recognisable figure the world over, and has cemented himself as one cinema's biggest baddies through both his merciless onscreen actions, as well as the way he looks, moves and sounds.
Indeed, Vader's famous suit is almost a character in its own right, with its flowing cape, emotionless mask and deep black colour effortlessly conveying the power and strength the former Jedi apprentice possesses.
Vader has an extensive history in both Star Wars canon and Legends material, and besides the movies, has appeared in countless novels, comics and games. Because of this, there's a lot of information pertaining to his suit that might surprise you, whether that's because it's buried deep in an obscure book, it was a news story that was easy to miss, or it was struck from canon by Disney a few years ago.
10. The Mask's Interior Was Made Of Some Very Odd Stuff
Vader's signature mask is the most important part of his costume, with its sunken eyes and creepy mouth-grill making him look intimidating at all times.
But actually designing the thing wasn't easy. In the 1970s - while working on the first film - costume designer John Mollo faced several challenges, including a limited budget, as well as the need to make sure the mask fit actor David Prowse perfectly.
But 2005's Revenge Of The Sith posed a completely different challenge altogether: deciding what the inside of the mask would look like.
Since the interior had never been seen on film before, this was brand-new territory for the entire team. Concept design supervisor Ryan Church spent a lot of time mapping out the look, before handing the actual building task over to special effects artist Don Bies - after George Lucas approved, of course.
And how did Bies bring the inside of the mask to life? A mixture of computer hard drives and collar spikes, amongst other items. Why exactly someone had a spare spiky collar lying around, we'll never know.