"With a theatre audience there's always the additional sense of a sustained challenge of which I'm acutely aware and for which you need to have the tools ready - your voice, physicality, brain"

In this quote, Greta Scacchi articulates the unique needs and characteristics of carrying out before a live theatre audience. Theatre, unlike film or television, is a medium that demands immediacy and sustained engagement. Scacchi highlights this by describing the "sustained difficulty" that live efficiency entails. She suggests that performing in front of an audience is not simply about providing lines however needs a continuous and heightened awareness of the present minute.

The "continual difficulty" suggests an ongoing, unbroken connection with the audience, which heightens the actor's experience. Scacchi emphasizes being "acutely mindful" of this connection, suggesting a deep level of mindfulness and existence needed from the entertainer. This severe awareness is essential, as it affects how a star adapts and reacts to the audience's instant reactions.

She also talks to the requirement of "tools" that a star need to have at their disposal-- mainly the voice, physicality, and brain. These tools are interdependent and jointly boost an actor's capability to convey feeling, nuance, and narrative successfully.

The "voice" is foundational in theatre for predicting emotion and discussion across a live area, without the aid of microphones or sound editing. It should be versatile, meaningful, and capable of sustaining energy throughout the performance.

"Physicality" refer to body movement and motion, which are essential for conveying meaning and feeling, especially in big theatre areas where subtle facial expressions might not show up.

Finally, "brain" describes the intellectual and innovative faculties required to comprehend the character, translate the script, and make decisions in the minute. It includes the ability to think quickly and adjust to the ups and downs of live performance dynamics.

Scacchi's insight underscores that acting in theatre is an art type reliant on a complex interaction of skills, all activated and used in real-time to develop a compelling and appealing performance.