WPA is WiFi Protected Access - it's the most common method of encryption used to secure a wireless network. If you have a laptop or smartphone and you're trying to connect to a WiFi network, you'll usually need to enter a WPA key (or password) in order to connect to it.
In the live-action adaptations by Sir Peter Jackson, Sauron is portrayed by Benedict Cumberbatch in The Hobbit trilogy (who also portrays Smaug in the same trilogy) and was played by Sala Baker and voiced by Alan Howard in The Lord of the Rings trilogy.
In It's A Trap!, Darth Vader and Emperor Palpatine, played by Stewie Griffin and Carter Pewterschmidt respectively, use their criticisms of Green to incite anger in Luke Skywalker, played by Chris Griffin. After the end of the story, Chris asks his father Peter, who told the story, what he has against Green.