Ian Ziering:

Good Genes or

Good Docs?

8/8/2010 4:10 AM PDT BY Johnny Lopez
Is Ian Ziering still in high school?


Here's the 28-year-old back in 1992 when he played a high school student on "Beverly Hills, 90210"(left) -- and 18 years later, the 46-year-old at an event in Hollywood on Thursday (right).

He definitely graduated with honors.