Marshall Ross
Quote 1
And for some reason, Toby tried hardest of all. He squatted down by Marshall and talked to him a long time about how he didn't think that was the kind of question that oracles answered, but Marshall only shut his eyes and shook his head and said "NO!" (18.25)
The kids feel close to Marshall and want to keep him from disappointment, so they spend a lot of time trying to talk him out of using the oracle to locate Security. But he's having none of it. Security is where his babyish side comes out—and stubbornness is where his future-CEO side comes out.