​From Wikipedia, the free encyclopedia.   Anna Maxwell Martin (born May 1977), sometimes credited as Anna Maxwell-Martin, is a two-time BAFTA award-winning English actress who has won acclaim for her performances as Lyra in His Dark Materials at the Royal National Theatre, as Esther Summerson in the BBC's 2005 adaptation of Bleak House, and as N in Channel 4's 2008 adaptation of Poppy Shakespeare. Description above from the Wikipedia article Anna Maxwell Martin, licensed under CC-BY-SA, full list of contributors on Wikipedia.