I don't know his name. I just know that he played the village officer / idiot in The Trouble with Harry, which is the source of that photo.
He looks like an emaciated Gregory Peck or somewhat like Charlton Heston!
Billy, it is Royal Dano. Good going! A great character who I remember mostly from the old Rifleman series. He played 5 different roles in 5 different episodes - including Abe Lincoln.
Like I said, I'm a connoisseur of all things Hitchcock. The Trouble with Harry is a masterpiece of mid-20th century cinema. It debuted two stars who would go on to enjoy the limelight for generations: Jerry Mathers (pre-Beaver) and Shirley MacLaine (pre-insanity). If it weren't for a little known Jimmy Stewart movie called Harvey, I would say that The Trouble with Harry is my favorite comedy of that era.
The photo actually caused a debate between my wife and I about the scene from which it was taken. We popped in the DVD, and well... Let's just say, one of us was right.