波利·沃克WalkerlandedthetitleroleinthetelevisionseriesLornaDoonebeforemakingherfeaturedebutinShogunMayeda.InthatsameyearsheappearedinLesEquilibristesandinMikeNewell'sEnchantedApril,inwhichsheplayedanaristocrateagertoescapetheattentionsofherpersistentmaleadmirers.Walkerfirstgarneredinternationalattentionin1992asasingle-mindedEnglishmemberofanIrishterroristgroupinPhillipNoyce'sPatriotGames.In2003shehadastarringroleintheBBCdramaseriesStateofPlay.波利·沃克Between2005–2007,WalkerplayedAtiaoftheJuliiinthebothseasonsoftheHBO,BBC2televisionseriesRome.HerperformanceearnedheraGoldenGlobenominationin2005for"BestPerformancebyanActressInATelevisionSeries–Drama."ShenextplayedthesinisterCatherineBraithwaiteinDeusExMachina,atwo-episodestoryoftheBBCtelevision"coldcase"crimeseriesWakingtheDead,whichalsoairedinJanuary2007.InMay2007,WalkerappearedasLadyBessSedgwickinITV'sMarple:AtBertram'sHotel,andthenplayedsugarheiressEllisSamuelsintheCBStelevisiondramaCane,whichpremiered25September2007.InMay2008,WalkerwascastasSisterClariceWillow,headmistressofaprivatereligiousschool,inSyfy'sBattlestarGalacticaprequelseriesCaprica.In2011shegueststarredasRannaSeneschal,leaderoftheundergroundcityofPraxis,onSanctuary.Sheisoneoffoursiblings.Walkerhastwochildrenfromtwopreviousrelationships,GiorgioandDelilah.ShecurrentlylivesintheUnitedStates.On23October2008,WalkermarriedformerBritishsoapstar,LaurencePenry-Jones,mostfamousforhisroleasDr.OliverBergintheBBCsoap,Doctors2022年,参演电视剧《布里奇顿第二季》。