DCist was impressed by the Synetic Theater’s silent MacBeth, but a new production at the Studio Theater is attempting a similarly impressive feat. The stars not only remain silent, but their characters are performed with other people’s voices. Yes Washington, Lypsinka has returned, this time as Joan Crawford. Twenty-five years ago a star was born on Christopher Street as Creator/Performer John Epperson made his theatrical debut as an amalgam of the most glamorous leading ladies…