John Stamos played the Olsen Twins' uncle on "Full House," but now he's the one still with the baby face.
Here's 21-year-old Johnny back in 1984 (left) -- and 25 years later, the 45-year-old version at an event in February (right).
He really is a Greek god.
Good Genes or Good Docs?
4/29/2009 12:00 PM PDT BY TMZ STAFF
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