A story is told by one of the participants and immediately the actors improvise it.

Beerbohm appeared on stage at least once in every production, forcing the actors to improvise.

It's the director who - with my consent - lets actors improvise.

In the first of several manipulated turning points, the actor improvises a scene and reveals his genius.

Ideally, the actor should then improvise the scene or punchline in a new way.

The actors improvise the dialogue to get to those points.

Although they worked from a detailed script, the actors also improvised and added dialogue.

Analytical theatre is when a participant tells a story and the actors improvise it.

Lewis kept it fresh by having the actors improvise their dialogue.

Normally workshops are used to allow actors to improvise their own material.