A professional who coordinates production plans and directs activities of stage crew and performers during rehearsals and performance. Responsibilities include:

• Confers with director, stage concerning production plans.
• Arranges conference times for cast, crew, and director, stage, and disseminates general information about production.
• Reads script during each performance and gives cues for curtain, lights, sound effects, and prompting performers.
• Interprets stage-set diagrams to determine stage layout.
• Supervises stage crew engaged in placing scenery and properties.
• Devises emergency substitutes for stage equipment or properties.
• Keeps records to advise producer on matters of time, attendance, and employee benefits.
• Compiles cue words and phrases to form prompt book.
• Directs activities of one or more assistants.
• May instruct understudy, replacement, or extra.
• May call performers at specified interval before curtain time.
• May operate production equipment to transmit or record performance.