Shoutout goes to 5SecondsOfSwim for answering the last question first and correctly! The correct answer was Luke Castellan.

When Luke Skywalker returns to the Rebel Base from blowing up Death Star Number One in Star Wars: Episode IV: A New Hope, he runs to greet his sister. The line was written so that he says her name, Leia, which he does due to a voiceover inserted by director George Lucas. However, during filming, actor Mark Hamill (Luke Skywalker) does not say Leia. If one reads his lips during this scene, one can tell what he's saying. What does Hamill really say?