Justin Bieber Is 20 Today; Zack Morris Is 40 The birthdays of Justin Bieber and Zack Morris (Mark-Paul Gosselaar) represent a perfect cultural division between two generations. On the other hand, actor Mark-Paul Gosselaar, who famously played the teen mischief-maker Zack Morris, turns 40 years old today. It may be uncharitable to simply conflate Gosselaar with the character Zack Morris for the rest of his life. But considering that ...
March 1, 2014 - The Atlantic Wire via Yahoo! News