John Young
June 29, 2010 AT 12:00 PM EDT

Angela Kinsey, 39, who plays the uptight Angela Martin on NBC’s The Office, filed for divorce last Thursday in Los Angeles from Warren Lieberstein, 41, one of the sitcom’s producers and writers, according to Kinsey and Lieberstein married in 2000, and plan to share custody of their 2-year-old daughter. The couple separated in February 2009.

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