Carrie Fisher
her name was princess Liea.
Femi Taylor played as Oola in Star Wars Episode 6.
Peter Mayhew played Chewbacca in Star Wars Episode 4: A New Hope, Star Wars Episode 5: The Empire Strikes Back, and Star Wars Episode 6: Return of the Jedi.
Yes, she played Sabe in Star Wars Episode I (The Phantom Menace)
Jake Lloyd
Anakin was played by Jake Lloyd
Star Wars Episode IV: A New Hope (a.k.a. the original released as just "Star Wars" in 1977).
Star Wars Episode IV: A New Hope, 1977; Star Wars Episode V: The Empire Strikes Back, 1980; and Star Wars Episode VI: Return of the Jedi, 1983.
Jake Lloyd has: Played himself in "The Tonight Show with Jay Leno" in 1992. Played Jimmy Sweet in "ER" in 1994. Played Young Angelo in "The Pretender" in 1996. Played Ronny Collins in "The Pretender" in 1996. Played Jamie Langston in "Jingle All the Way" in 1996. Played Mark Armstrong in "Apollo 11" in 1996. Played Jack in "Host" in 1998. Played himself in "1999 MTV Movie Awards" in 1999. Played Anakin Skywalker in "Star Wars: Episode I - The Phantom Menace" in 1999. Played Anakin Skywalker in "Star Wars: Episode I - Jedi Power Battles" in 2000. Played Anakin Skywalker in "Star Wars: Episode I - Racer" in 2000. Played Anakin Skywalker in "Star Wars: Super Bombad Racing" in 2001. Played Anakin Skywalker (Episode 1) in "Star Wars: Racer Revenge" in 2002. Played Anakin Skywalker (Episode 1) in "Star Wars: Galactic Battlegrounds" in 2002. Performed in "Science of Star Wars" in 2005. Played Anakin Skywalker in "Lego Star Wars: The Video Game" in 2005. Played Mike McCormick in "Madison" in 2005. Played himself in "Heart of an Empire" in 2007.
Star Wars episode III - the revenge of the sith
Star Wars Episode II: Attack of the Clones