Well, my brother was talking about Sasaki Isao and DVD screencaps today, so I decided to go ahead and get some screencaps from the 1960 film Taiyo no Hakaba (otherwise known as "The Sun's Burial" or "Tomb of the Sun"), which is a miserable kind of film by Oshima Nagisa ("Merry Christmas Mr Lawrence" etc).
Sasaki Isao has a large role in the film. He's still a teenager, a very scrawny looking Japanese Elvis. :D He's so young he doesn't even have a really deep voice yet! But even now, closing in on 50 years later, he hasn't changed that much, has he? ^_^