▁she ▁gets ▁gre et ed ▁at ▁the ▁door ▁by ▁a ▁ch imp ▁named ▁Link , ▁dressed ▁in ▁a ▁but ler ' s ▁uniform . ▁▁ ▁Phili ps ▁disapp ears , ▁but ▁Jane ▁thinks ▁he ▁left ▁for ▁London . ▁She ▁dec ides ▁to ▁stay ▁with ▁the ▁chim ps . ▁Over ▁time ▁the ▁chim ps ▁become ▁more ▁violent . ▁They ▁begin ▁to ▁take ▁over ▁the ▁ ▁house ▁and ▁to ▁get ▁involved ▁in ▁inter t rib al ▁squ ab bles , ▁leading ▁to ▁a ▁confront ation ▁with ▁Jane .. ▁ ▁Cast ▁ ▁Human ▁Act ors ▁ ▁Elisabeth ▁Sh ue ▁as ▁Jane ▁Ch ase , ▁a ▁young ▁American ▁zo ology ▁studying ▁in ▁England ▁who ▁takes ▁the ▁opportunity ▁to ▁assist ▁Dr . ▁Phill ip ▁with ▁his ▁studies . ▁ ▁Ter ence ▁St amp ▁as ▁Dr . ▁Steven ▁Phill ip , ▁an ▁anth rop ologist ▁studying ▁the ▁mental ▁capabilities ▁of ▁ch imp anze es ▁in ▁his ▁isolated ▁estate ▁in ▁the ▁English ▁coun tr ys ide . ▁Anthony ▁Per kins ▁was ▁offered ▁the ▁role ▁but ▁turned ▁it ▁down . ▁ ▁Steven ▁P inner ▁as ▁David , ▁Jane ' s ▁boy friend ▁who ▁investig ates ▁Phill ip ' s ▁estate ▁after ▁Jane ' s ▁call ▁gets ▁ab rupt ly ▁cut ▁off . ▁ ▁Kevin ▁Lloyd ▁as ▁Ba iley , ▁Phill ip ' s ▁friend ▁who ▁is ▁called ▁to ▁put ▁Link ▁down . ▁ ▁David ▁O ' H ara ▁as ▁Tom , ▁David ' s ▁friend ▁who ▁goes ▁with ▁him ▁on ▁his ▁search ▁for ▁Jane . ▁ ▁Richard ▁Gar nett ▁as ▁Dennis