Answer:
Nick Carraway
Step-by-step explanation:
Nick Carraway, because the entire novel is presented through his naive clouded vision. Nick's judgement is clouded by his overblown admiration for Jay Gatsby such that he allows Gatsby to use him to gain access to his intended paramour, Nick overlooked Gatsby's lies about the origins of his wealth and family, he overlooks Gatsby's criminal peddling of illicit securities (bonds) even when Gatsby tries multiple times to recruit him and he even supplies Gatsby with an alibi suggesting Daisy drove the car after Gatsby murdered Myrtle.