Who is The Pupil from Four Plays and what is their importance?

On a technical level, the Pupil is the antagonist of the play, the character that triggers change and transformation in the protagonist (the Professor). On a metaphoric level, as described above, the Pupil is an embodiment of that which is free, curious, and exploratory about human existence - the spirit of impulse which (as the action of the play dramatizes) is often destroyed by a spirit of control and/or rigidity. In other words, the Pupil is an embodiment of the absurdist philosophy, and is perhaps one of the most effective character-embodiments in the entire collection, in that she combines what might be perceived as both positive and negative values. Specifically, her brilliance is as random and as brilliant and as unexplained as her inability to count.