The Camera Crew
After the director comes the camera crew. Depending on the production this can be one person or a team of half a dozen or more. There will be the camera operator, the focus puller (someone who adjusts the focus of a camera during filming) plus various people to push the camera around, change the lenses, put in new spools of film (that is, if they’re old fashioned – mostly filming is done now digitally but someone still needs to take out memory cards and upload them to computers and so on), or do one of a million jobs in this department.
As an actor, keep a respectful distance and let them get on with their job in peace.