Hamill also lent his voice to as Master Eraqus in the English version of the video game, Kingdom Hearts: Birth by Sleep. Hamill also provided some voices for My Friends Tigger and Pooh. He also voiced Colonel Muska in Castle in the Sky, Flint in Buzz Lightyear of Star Command, Zeus and Hans Christian Andersen in The Little Mermaid, Bats Biker and the Shape Shifter in Gravity Falls, and ShiverJack in Jake and the Never Land Pirates.
- Tetsuya Nomura, the director of Birth by Sleep, stated in an interview that he chose Hamill for the part specifically because of his role as Luke Skywalker in the original Star Wars films. Eraqus is rivals with Xehanort, who is voiced by Star Trek actor Leonard Nimoy, essentially making their rivalry Star Wars VS Star Trek to Nomura.
- Mark Hamill stated at Comic-Con 2010 that "playing as Luke Skywalker was his overall favorite role".
- Mark Hamill is also famous for voicing the Joker in Batman: The Animated Series, since The Birthday Bandit is similar to Joker.