Luke Perry Luke Perry

It may be hard to believe, but Beverly Hills, 90210 — the ultimate teen drama — debuted 20 years ago on Oct. 4, 1990. Its 10-year run follows the Walsh twins on their move to the tony zip code from Minnesota, through their high school years and on to California University. So what's everyone up to now?

They've been on Dancing with the Stars and worked behind the cameras. Find out how your favorite cast members have been keeping busy.

Click here to check out our Then and Now: Beverly Hills, 90210 photo gallery!