GreenWingandFreeAgentsstarStephenManganistoplaytheleadroleinBBC4'sadaptationofthelateDouglasAdamsDirkGently'sHolisticDetectiveAgency. 　　ManganwillbejoinedbyDarrenBoydashissidekickRichardMacDuffandColdFeetandFriendsactorHelenBaxendale,asMacDuff'sgirlfriendSusan. 　　AdaptedbytheBafta-winningwriterHowardOverman–whoisalsobehind...