Here's the breakdown:
* Ray Park plays Darth Maul in the Star Wars prequels. He appears as a pirate named "Maccus" in "At World's End."
* Christopher Lee plays Count Dooku (Tyranus) in the Star Wars prequels. He plays the pirate captain "Captain Teague" in "At World's End."
* Ian McDiarmid plays Emperor Palpatine (Sidious) in the Star Wars prequels. He makes a cameo appearance in "At World's End" as a "Chinese Prisoner."
While their roles aren't as prominent as their Star Wars counterparts, it's still fun to see these actors reunited in a different fictional universe!