Darsteller und CrewLarry DavidHimself - Actor / Comedian / Environmental ActivistRichard BransonHimself - Founder, Virgin GroupGeorge W. BushHimself - President of the United StatesSheryl CrowHerself - Musician / Environmental ActivistBarbara BoxerHerself - Senator - CaliforniaJoshua TickellHimself / narratorJohnny O'Haratvm.persons.postions.author