Sarah Michelle Gellar Sarah Michelle Gellar

Get ready for even more Sarah Michelle Gellar on TV!

CW has given a full-season order to Ringer, the noir thriller starring the Buffy alum as a twin who takes on the identity of her sister while on the run from some unsavory types.

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The series opened to 2.7 million viewers, boosting The CW to its most-watched Tuesday night in two years. Week 2 dropped nearly 30 percent to 1.96 million viewers, which was followed by a slight uptick. Ringer's latest outing Tuesday night jumped to 1.72 million after plummeting to a series low 1.49 million the previous week.

Ringer is the first fall drama to get a full-season pickup. Fox's New Girl was the first comedy, followed by NBC's Up All Night and Whitney, and CBS' 2 Broke Girls.

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Ringer airs Tuesdays at 9/8c on the CW.