Justin Deeley and Megalyn Echikunwoke

90210's Naomi is about to meet her match — and her new lover!

Megalyn Echikunwoke has joined the cast of 90210 as a new nemesis for Naomi (AnnaLynne McCord), TVGuide.com has confirmed. As we first reported, new character Holly is the mean-girl president of the most prestigious sorority at CU. When Holly can't control Naomi's characteristic acquisitiveness, she seeks revenge for one particular purchase by hazing the holy heck out of everyone's favorite pregnant frenemy.

Check out the rest of today's news

Meanwhile, newcomer Justin Deeley has signed on to play a sexy cowboy type and love interest for Naomi. Austin may look like a cowboy redneck, but he's actually the son of a country music superstar. Even though he's rolling in dough, he doesn't like people who flaunt their fortune — someone like Naomi.

Echikunwoke's previous credits include CSI: Miami, The 4400 and 24. Fun fact! Deeley previously appeared on 90210 as a stripper.

The news was first reported by TVLine.com.