That sucks.
For what it's worth, I thought they didn't cast his character well in 90210. The guy looked damn near 30 years of age and was playing the role of a high school student. I believe Perry was 23 when they first started filming 90210, but age wasn't kind to him.
Likewise, the Ziering guy looked terrible as well and in no way resembled a high school student. Here's a picture of Ziering from when he was in the show.

"
1"