Crew roles and responsibilities

Floor manager (FM): The floor manager is in charge of the studio. He decides who comes and goes from the studio and when. He is also in charge of passing on messages from the director to the people on set such as the camera ops, contestents ect. There is often an assistant floor manager who is there to preform odd tasks that need doing and the floor manager and director must have a good relationship.
Director:
The Director is in charge of what happens through out the production.
Assistant Director:
The assistant director accompanies the director when needed.
They also keep everyone in line, correcting people when they are wrong.
Vision Mixers: (x2)
Controls what shots are used
Lighting Operators: (x2)
Ensures the lighting level is sufficent to each shot
Sound Operators: (x2)
Is in control of using the audio mixer and making sure that all sound equipment is working.
Producer
Is in charge of the content of the production.
Camera Operators: (x4)
A camera operator controls the camera, delivers shots that are asked for.
Camera Operators Assistant (x4)
Makesure no wires are damanged