prompter, n.All

The Prompter (n.) stays ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠invisible, and that invisibility keeps the actor's text foreign to him, written by another hand.