Jane Seymour, aka TV's Dr. Quinn, has officially pulled the plug on her marriage to actor/director James Keach, filing for legal separation ... TMZ has learned.
Seymour filed the docs late last week in L.A. County Superior Court ... citing irreconcilable differences.
62-year-old Jane and 65-year-old James have been married for more than 20-years and have 17-year-old twin boys. In the papers, Jane requests joint legal and physical custody.
The couple announced in April that they were splitting up, and negotiating terms of a divorce ... but the docs make the split official.
The former Bond girl is not requesting spousal support.
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