According to IMDb 71 people are in the credited cast.
If you are talking about a person who starred in the Star Wars movies, you are talking about Pernilla August, who played Shmi Skywalker in Episodes 1 and 2
Ewan McGregor as Obi-Wan Kenobi, Natalie Portman as Padmé Amidala, Samuel L. Jackson as Jedi Master Mace Windu and many more.IMDB.com has the full cast list :)
The Stars of 'Star Wars' Interviews from the Cast - 1999 V is rated/received certificates of: UK:E
The cast of Star Wars Pinball - 2013 includes: Ashley Eckstein as Ahsoka Tano
The cast of Star Wars in Japan Celebration - 2008 includes: Blair Butler as herself
The cast of Star Wars Gangsta Rap - 2000 includes: Jason Brannon as All Voices
The cast of Star Wars Arcade - 1996 includes: Gina Brandstetter as Animator Mike Chung as Animator
The cast of Star Wars Tech - 2007 includes: Todd Barber as Himself - Propulsion Engineer, NASA-JPL
Your question doesn't make any sense.
Handed out the script and people tried out
The cast of Angry Birds Star Wars Cinematic Trailer - 2012 includes: Tom Kenny