AnnaLynne McCord
In 2008, she was the eighteenth actress to be cast in The CW series "90210", portraying antiheroine Naomi Clark. Initially, the part of Clark was conceived as a supporting role. However, by the end of the first season, media outlets had begun referring to McCord as the series' lead. For the role of Naomi Clark, she was nominated for a Teen Choice Award and received the "Hollywood Life" Young Hollywood Superstar of Tomorrow award in 2009. In 2010, she won a Breakthrough of the Year Award in the category of "Breakthrough Standout Performance".
90210 (TV series)
Jessica Lowndes was selected to portray actress and singer Adrianna Tate-Duncan, introduced as a theater performer who suffered through a drug addiction, and would also go through a teen pregnancy and many other serious conflicts as a dark character with many lovable aspects. The Adrianna Tate-Duncan role had been upgraded to a starring role in Jessica Walters' spot, Tristan Wilds was cast as step-brother to Annie Wilson; Lori Loughlin won the role of their mother, photographer wife Debbie Wilson. Michael Steger was cast as the school television news director and congenial very nice guy, Navid Shirazi who maintained the nice-guy status throughout all 114 episodes (2008-2013) of generally being walked on or victimized.
Rob Estes was the last actor to join the series; he was sought by The CW to play the part of Harry Wilson, and would only appear in the first two seasons. Estes was a previous cast member of the first "Beverly Hills, 90210" spin-off, "Melrose Place".