TucsonStage.com PORTRAYING THE MANY SIDES OF ALBERT EINSTEIN by Chuck Graham “For some actors, every once in awhile, there comes along a role that fits like a shoe. You don’t know why,” said Ed Metzger, a career professional actor who was a student of Lee Strasberg. Metzger is speaking of the role he created for himself, doing a one-man show as Albert Einstein. The performance is so realistic even members of Einstein’s own family have come backstage to applaud Metzger. The first time that happened was 1978, when Metzger debuted “Albert Einstein: The Practical Bohemian” in Los Angeles. On Thursday, March 11, Metzger opens a four-show run of “Einstein” at Invisible Theatre, 1400 N. First Ave. “When I get on the stage as Einstein, it’s like we become one,” the actor continued. “Doing other roles, I always have to work at getting it right, but not with Einstein. Somehow it always clicks. “You feel it, but you don’t know why. It’s a melding. Maybe I picked him, or he picked ...