Michelle Ryan

Does Annie need to watch her back?

Bionic Woman star Michelle Ryan will recur on Covert Affairs next season as a new CIA operative, TVGuide.com has learned exclusively.

Ryan will play Teresa Hamilton, an agent with a shadowy past. She'll make her first appearance in the Season 4 premiere.

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The British actress joins CSI: NY star Hill Harper as new cast additions. As previously announced, Harper, who will be a regular on the USA drama, will play a CIA station chief in Latin America who tries to befriend Annie (Piper Perabo) and Auggie (Christopher Gorham), but they begin to question his intentions.

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In addition to NBC's short-lived Bionic Woman reboot, Ryan is best known across the pond as Zoe Slater on the long-running British soap EastEnders. She has also appeared on Merlin and Doctor Who.

Season 4 of Covert Affairs premieres Tuesday, July 16 at 9/8c on USA.