in the book Henry Goose is an evil character, while Isaac Sachs and Zachry are basically good. According to imdb, Tom Hanks plays all of these characters. I don't really get why that would be, they aren't linked in the book. The only linked characters are those with the comet birthmark - Adam Ewing, Robert Frobisher, Luisa Rey, Timothy Cavendish, Sonmi-451, Meronym. I don't get why they would do that from a story point of view.