Bryce Moore, who worked with David Fincher for 10 years, also tells TheWrap what was (actually) in the box in “Seven” Oliver Stark with the prop dummy in the "9-1-1" episode "Masks"(CREDIT: Disney/Ray Mickshaw) Last week’s Halloween-themed episode of “9-1-1,” Buck (Oliver Stark) brings what he thinks is a dummy skeleton to a haunted house attraction hosted at the 118 fire station. To everyone’s horror, he later learns that the dummy is actually a real skeleton belonging to an Old West outlaw