Naomi Clark, played by AnnaLynne McCord, is a fictional character from the CW primetime drama 90210, the fourth series of the Beverly Hills, 90210 franchise. The character was created by Rob Thomas, Gabe Sachs and Jeff Judah, with later developments by Rebecca Sinclair, and occasional input from McCord.

Erin Silver, known mononymously as Silver, is a fictional character on The CW television series 90210, the fourth series in the Beverly Hills, 90210 franchise. Portrayed by Jessica Stroup, the character was originally introduced in Beverly Hills, 90210 as Kelly Taylor and David Silver's half sister.