▁then ▁refused ▁the ▁part , ▁apparently ▁on ▁the ▁advice ▁of ▁his ▁agents . ▁Kub rick ▁considered ▁Peter ▁U st in ov ▁but ▁decided ▁against ▁him . ▁Harris ▁then ▁suggested ▁David ▁N iven ; ▁N iven ▁accepted ▁the ▁part ▁but ▁then ▁with d rew ▁for ▁fear ▁the ▁spons ors ▁of ▁his ▁TV ▁show , ▁Four ▁Star ▁Play house ▁( 1 9 5 2 ), ▁would ▁object . ▁Mason ▁then ▁with d rew ▁from ▁his ▁play ▁and ▁got ▁the ▁part . ▁ ▁The ▁role ▁of ▁Cla re ▁Qu ilty ▁was ▁greatly ▁expanded ▁from ▁that ▁in ▁the ▁novel ▁and ▁Kub rick ▁allowed ▁S ellers ▁to ▁adopt ▁a ▁variety ▁of ▁dis gu ises ▁throughout ▁the ▁film . ▁Early ▁on ▁in ▁the ▁film , ▁Qu ilty ▁appears ▁as ▁himself : ▁a ▁conce ited , ▁avant - gar de ▁play w right ▁with ▁a ▁superior ▁manner . ▁Later ▁he ▁is ▁an ▁in quis itive ▁polic eman ▁on ▁the ▁por ch ▁of ▁the ▁hotel , ▁where ▁Hum bert ▁and ▁L ol ita ▁are ▁stay ing . ▁Next ▁he ▁is ▁the ▁intr us ive ▁Be ards ley ▁High ▁School ▁psych ologist , ▁Doctor ▁Z emp f , ▁who ▁l ur ks ▁in ▁Hum bert ' s ▁front ▁room , ▁to ▁persu ade ▁him ▁to ▁give ▁L ol ita ▁more ▁freedom ▁in ▁her ▁after - school ▁activities . ▁He ▁is ▁then ▁seen ▁as ▁a ▁photograph er ▁back stage ▁at ▁L ol ita ' s ▁play . ▁Later ▁in ▁the ▁film , ▁he ▁is ▁an ▁anonymous ▁phone ▁caller ▁conduct ing ▁a ▁survey .