Happy Birthday, Henry Winkler!
To celebrate "The Fonz" turning 70-years-old today, click through the gallery above to see the cast of Happy Days then and now!
Since Happy Day, Ron has moved behind the camera and now works as a director. He's helmed countless films including Splash, Apollo 13, How The Grinch Stole Christmas, and The Da Vinci Code.
R/R | Getty Images