THEN: Jason Priestley as 'Brandon Walsh'
Jason Priestley played Brenda's twin brother Brandon Walsh, who is often cited as the glue that held the “90210” group together for nine seasons. Walsh encountered his fair share of drama during the series, including serious drinking and gambling addictions. —XFINITY Entertainment Staff (Photo: Fox)
The opinions expressed are solely those of the author and do not necessarily reflect the views of Comcast.