EXCLUSIVE 'Harry Potter' Clip Shows The Origin Of Mad-Eye Moody

Narrowing down your favorite supporting characters throughout the whole wide wizarding world of the "Harry Potter" universe is no easy task, but smart money puts Alastor "Mad-Eye" Moody towards the top of most fans' lists.

Moody, a crucial member of the Order of the Phoenix and mentor of Harry's, has come to stunning life on the big-screen in three separate "Potter" flicks not just by actor Brendan Gleeson, but also the fantastic array of special effects and makeup artists who created the hard-drinking Auror's scarred appearance and his literal wandering eye.

In this exclusive behind-the-scenes look at the "Harry Potter and the Deathly Hallows: Part 1" Blu-ray and DVD that hits streets on April 15, "Potter" fans are invited to take a look at how the production team brought Mad-Eye Moody out of J.K. Rowling's written imagination and into the plane of cinematic existence.

The clip gives up the goods on several of the movie magic secrets behind the "Harry Potter" series, including the fact that Mad-Eye's magical eye is actually operated through a remote controlled operator on set.

Another interesting tidbit: it took about five or six different looks before the "Potter" team was fully satisfied with their design for Mad-Eye. You'd think that might be a tiring process for an actor to go through, but the clip reveals that Gleason "really took to it. He really brought something to the character through the makeup. When that happens, I can sit back and feel like we've done our jobs right."

Tell us what you think of the "Harry Potter" clip in the comments section and on Twitter!