A casting consultant or casting director works with the director of a production to identify the actors that are needed for each scene of a movie or TV Series. The casting consultant will perform a script breakdown which involves separating the script into the different roles. Once they have identified the roles they will then create the briefs to send to the talent agents like MCTV.
The casting consultant may be given authority to select talent directly or work with the director to select talent for the roles. Usually, the casting consultant receives a large number of suggestions from the talent agents and it is up to the casting consultant to narrow those suggestions down to the ones that will work best for the production.