Liew Thow Lin is a Malaysian who can make metal objects stick to his body. His power has also been inherited by his three sons and grandchildren.
Incredibly he has used this ability to tow a car.
Malaysia's University of Technology says Lin does not have any magnetic field but it's actually down to a super-suction effect of his skin. Perhaps he should rebrand to Mr Velcro? Not quite the same ring, plus it's only metals apparently.
Wikipedia Profile
Good Reverend article
Though technically not a wall-crawler, since Lin's skin is considered to have a 'suction' effect allowing him to 'stick' to metal (not unlike the tiny barbs in Spider-Man's skin allowing him to 'stick' to walls), I'm going to file under Wall-Crawling.
