But if you take that instance plus Sonny's behavior throughout the film up to and including his demise...it can be agreed that Santino Corleone was not a 'complex' personality.
But neither was his brother Fredo. Which was exactly why Roth reached out to him.
Apple
If by not having a 'complex personality' you mean not being very bright or smaht, I agree.
I think Roth approached Fredo b/c he was naive. However I think one can be naive or just a plain moron, and still have a 'complex personality.'
