The character in the play I could most recognize in real life would be Cleante. Cleante sees through Tartuffe and attempts to warn his brother-in-law of his nature. Cleante uses reason to try to persuade Orgon away from putting trust in Tartuffe. Orgon decides to leave Cleante's advice unheard. This decision leads him to trouble Tartuffe.
Cleante's main purpose in the play is to be Orgon's voice of reason. He spends most of his time in the story advising Orgon and attempting to set him on a good path. He is overlooked throughout the play and is even criticized. I feel as though I can connect this to some of the people in my life whose opinions are often taken for granted.