Sometimes also known as a Spark or a Juicer they act as assistant to the Gaffer. Their job is to work for the Gaffer, following their instructions when on the set. He or she will be responsible for making sure there are enough people to do all the necessary production tasks and that the right equipment is available for a shoot. Along with keeping the inventory in order and doing time cards they will generally help out with what ever else is needed.

The Clapper Loader is the person responsible for the clapperboard. The clapperboard is used to mark out the slate number (the day of the shoot), the scene number, and the take number. The Clapper Loader 'claps' the clapperboard in front of the camera at the start of each take, and the numbers they have written on it are used by the editor to find the correct take, and its input point, to be used in the final edit. The clapper loader is also responsible for loading film into the camera, and for making sure that its inner-parts are clean and working. Finally, they're responsible for sealing and labelling all of the film cans ready for delivery to the developers.

The Dolly Grip is the grip responsible for handling the dollys, cranes, and sometimes car mounts that hold the cameras and allow the camera operator to get the shot they want. This involves setting up the tracks that the camera moves on, the dolly which moves the camera on the tracks, and the wide variety of jibs and other equipment that can be required.

The job of the Focus Puller is to keep the camera's lens in focus during a shot. This is a manual job and is quite complicated and skilled work, especially when the camera and the actors are both moving.

The Gaffer is the chief electrician on set in charge of the electrical lighting department. They are responsible for the maintenance, moving, and setting up of all of the lighting - making sure it's in good working order and placing it exactly where the lighting cameraman and director want it for a scene.

A Grip is a term that dates back to the early days of the circus. It carried on from there to vaudeville and on to today's music and film soundstages and TV sets. These are the people that do the laborious work on these sets. They push, pull, roll, and lift various pieces of equipment and their boss is the Key Grip who is usually in charge of the grips crew. Grips move and set up camera tracks and scenery in motion picture, theatre or TV productions. They are the jack-of-all-trades that do things like moving big set pieces in between scenes, propping up fake set walls and holding the ladder for the lighting technicians.

During the production of a film or programme the Runner is at everybody else's disposal - from making cups of tea through to helping to recruit extras for the next scene. Runners need to be compliant and willing workers, good communicators, efficient and good-natured. Becoming a runner is a foot-in-the-door job and a great way of gaining a valuable insight into the inner workings of the industry.