Pretender
     n 1: a claimant to the throne or to the office of ruler (usually
          without just title)
     2: a person who makes deceitful pretenses [syn: {imposter}, {impostor},
         {fake}, {faker}, {fraud}, {sham}, {shammer}, {pseudo}, {pseud},
         {role player}]
     3: a person who professes beliefs and opinions that he does not
        hold [syn: {hypocrite}, {dissembler}, {phony}, {phoney}]
Source: WordNet® 2.0