Actors' Reminders, also known as Cues, are important tools used by actors to help them remember their lines and cues during a performance. Cues are verbal or physical reminders given to an actor by another actor or the director to help them remember their lines or actions. They can be as simple as a word or phrase, or as complex as a gesture or movement. Cues are essential for actors to be able to perform their roles effectively and accurately.