Stars Dan Stevens and Rachel Keller share what to expect
by William Keck | Jan 21, 2013 8:00 AM EST
With the arrival of Lady Sybil's baby (and perhaps another wee Crawley on the way), Downton Abbey will be casting the role of a nanny for Season 4. "We have a lovely nursery story," says creator Julian Fellowes. Paging Mary Poppins!
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