Luke Skywalker-Mark Hamill
Princess Leia-Carrie Fisher
Han Solo-Harrison Ford
Darth Vader (Costume)-David Prowse
Darth Vader (Voice)-James Earl Jones
Obi-Wan Kenobi-Sir Alec Guinness
C-3PO-Anthony Daniels
R2-D2-Kenny Baker
Grand Moff Tarkin-Peter Cushing
Emperor Palpatine-Ian McDarmid
That's the main characters from Episode IV: A New Hope.
Hope that helps.
No all of the full house main cast is alive
No, the original cast are still alive
The cast members of the NBC television show "Sanford and Son" that are still alive as of July 2016 are Demond Wilson, Lynn Hamilton, Raymond Allen, Eric Laneuville, Gregory Sierra, Howard Platt, Marlene Clark and Migdia Chinea-Varela and Migdia Chinea-Varela is also sometimes credited in productions as the name; Migdia Chinea.
ALIVE
As far as I know, Madeline LeBeau (Yvonne), born in 1923, is the last survivor if the 1942 classic.
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 Arcade - 1996 includes: Gina Brandstetter as Animator Mike Chung as Animator
The cast of Star Wars Gangsta Rap - 2000 includes: Jason Brannon as All Voices
According to IMDb 71 people are in the credited cast.
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
No all of the full house main cast is alive
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