If there's anything that Sarah Michelle Gellar learned from her stint as Buffy, it's that she shouldn't give up - and give up, she hasn't.

A year after the demise of her CW twin thriller Ringer, Gellar hasn't let its cancellation stop her from returning to the small screen in a big way. The 35 year-old has signed on to join veteran comedian Robin Williams for the upcoming CBS comedy Crazy Ones.

The mother of two will star as Williams' driven, organized daughter set against the workplace backdrop of advertising.

Boston Legal creator David E. Kelley will pen the series pilot and serve as an executive producer alongside Dean Lorey, Bill D'Elia, John Montgomery.

No word yet as to when the pilot begins production.