Celebrity / Anna Kendrick Actors Who Played Teens When They Were How Old?! 'The Fonz' was actually ... 29 By Evann Gastaldo, Newser Staff Posted Aug 18, 2013 12:11 PM CDT Copied Henry Winkler played high school dropout Arthur "The Fonz" Fonzarelli on "Happy Days" when he was 29. (AP Photo/File) See 13 more photos It's common knowledge that teenage characters in movies and TV shows are rarely played by actual teenagers. Fox News rounds up 62 notable cases, and reveals the ages of the actors in question. Click through for a sampling or check out the complete list. (Or click to read about one 34-year-old who's been playing a teen since 1993.) Report an error