July 9, 2019 @ 7:30 pm – July 11, 2019 @ 7:30 pm

Mordialloc Theatre Company

by David Auburn

Directed by Peter Roberts

Enquiries:  0414 425 987 [email protected]

Please contact the director to confirm your audition and obtain a copy of the script.


Audition dates:       Sunday 9 June at 7.30 pm

Tuesday 11 June at 7.30 pm


Audition venue:      Guide Hall, Glebe Ave, Cheltenham (off Charman Rd)


Season dates:         6, 7, 8*, 12, 13, 14**, 15*, 19, 20 & 21 September 2019

Evenings: 8 pm

Matinees: **Saturday, *Sundays at 2.30 pm


Performance venue:          Shirley Burke Theatre, 64 Parkers Rd, Parkdale




Catherine has inherited her father’s mathematical brilliance, but she is haunted by the fear that she might also share his debilitating mental illness.  Caught between a new-found connection with Hal,

one of her father’s former students, and the arrival of her practical, successful sister, Claire, Catherine finds both her world and her mind growing increasingly unstable. Then Hal discovers
a ground-breaking mathematical proof among her father’s notebooks, and Catherine is forced to      further question how much of her father’s genius or madness will she inherit.

Winner of the Pulitzer Prize for Drama, David Auburn’s Proof is a passionate, intelligent story about fathers and daughters, the nature of genius, and the power of love.




Catherine, mid-20’s – A young woman who inherited much of her father’s mathematical genius and, she fears, his “instability” as well; she gave up her life and schooling to take care of her father until his recent death.


Claire, 30’s – Catherine’s older sister, a practical and business-minded woman who has been comfortably successful in her work and relationships. She left Robert and Catherine behind, distancing herself from the run-down family home of her youth to make a new life for herself in New York City.


Robert, late 50’s-60’s – A recently deceased mathematician praised for his ground breaking work in his youth, but whose later years were plagued by delusional mental illness; he is seen in Catherine’s imagination and in flashbacks.


Harold (Hal) Dobbs, late 20’s – One of Robert’s last Ph.D. students during the one year his idol and mentor’s illness went into remission, at least enabling Robert to teach, if not continue his own creative mathematical work.