Actress Navi Rawat has been bumped up to recurring status on FOX's "The O.C." and the up-and-coming thespian will stay in the network's family taking a prime role in the "Oahu" pilot. Rawat's moves at FOX head the latest round of pilot casting news.

For the time being, Rawat will play an expanded role in FOX's popular Wednesday night soap, as Ryan's (Benjamin McKenzie) ex-girlfriend from Chino. The character, Theresa, made her second appearance of the season in last week's (Feb. 18) episode.

In "Oahu," perpetually described as an "Upstairs, Downstairs" drama set at a Hawaiian luxury hotel, Rawat will play the hotel's concierge.

The actress' other credits include the feature "The House of Sand and Fog" and a multi-episode stint on FOX's "24."

ABC expanded the casts of a trio of drama pilots.

Justin Chambers ("Cold Case") will join "The Secret Service," a procedural drama about a young woman ("Tarzan's" Sarah Wayne Callies) balancing her marriage and the Secret Service. Chambers will play the woman's partner. The former model has also appeared in the features "The Wedding Planner" and "The Musketeer."

Also on ABC, Luis Mandylor ("My Big Fat Greek Wedding") and Salli Richardson ("Family Law") will appear in Graham Yost's real-time SWAT drama "Countdown" and Natalie Zea ("Passions") will play opposite Tim Daly in the risk management drama "Eyes."