Robert Sterling retired from acting in the 1970s to run a successful computer business; he has kept so low a public profile in the last two decades that many sources have referred to the still - active Anne Jeffreys as Sterling's widow! (rottentomatoes.com)
Well - respected for his intellect by those who work closely with him, Ed Miliband has a far lower public profile than his brother and his politics are marginally to the left. (politics.co.uk)
He wanted to keep a low public profile, but that was shattered when his name was dragged into the McEwen - Phillips mess. (si.com)