Do you mean Altman?
If so I suspect he isn't as naive as he puts out. He seems very cagey. Maybe when he was 20 he was more idealistic and clings to that or outwardly expresses that.
Discussion
Yes Altman and ‘cagey’ is perfect term to describe him. I didn’t mean idealistic to say he’s a Pollyanna but he doesn’t seem to understand we can see through his facade.