In addition to the cast members with speaking parts, the read-through is usually attended by the principal financiers or studio executives, producers, heads of department, writers, and directors. It is extremely rare for anyone not involved in the production to be permitted to attend. It is usually the first time everyone involved in the production will have gathered together and it is traditional to go around the table (usually a ring of tables, in fact) and allow everyone to introduce themselves by both name and job.