Casting director: The person who puts together and runs the early audition process, as well as oversees the room.
Casting associate(s): Assistants to the CD who mock up sides for actors to perform, take extensive notes, work the camera, and perform any other duty that makes the audition day run smoothly.
Audition reader or accompanist: If you’re auditioning for a speaking role, an audition reader will recite lines as your scene partner. If the role involves singing, an accompanist will be there to provide the music.