Who plays the starring role in Avatar? Star Actor/Actress for Jake Sully and Neytiri

With all of the recent buzz over the massive blockbuster Avatar, many people have been wondering who the star actors and actresses were for that movie. The star actor who plays the main character, Jake Sully, is Sam Worthington. The starring actress who plays the lead female role of Neytiri is Zoe Saldana. These two will almost certainly return in the upcoming sequels.
Sam Worthington stars as Jake Sully in Avatar