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The CW announced today that 'Prom Night' actress JESSICA STROUP will be joining the ever-growing cast of the "Beverly Hills, 90120" spin-off.

She will play Silver, Annie's (SHENAE GRIMES) classmate who produces a YouTube type video series.

Here is the breakdown of the cast so far:
Shenae Grimes -- Annie Mills, one of the core teenagers on the show, whose family has relocated to the 90210 zip code from Kansas.
LORI LOUGHLIN -- Celia Mills, a former Olympic medalist and mother of Annie and adopted son Dixon
JESSICA WALTER -- Annie's grandmother and Celia's mother-in-law Tabitha
ANNALYNNE McCORD -- Naomi, who is hot, rich and one of the most popular girls in school
DUSTIN MILLIGAN -- Ethan, a "likable, genuine ... star athlete."
RYAN EGGOLD -- teacher named Ryan