Is any of the Star Wars cast still alive?

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.