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PROOF is presented by special arrangement with Broadway Licensing, LLC, servicing the Dramatists Play Service collection. (



Winner of the 2001 Tony Award® for Best Play and Winner of the Pulitzer Prize for Drama.

On the eve of her twenty-fifth birthday, Catherine, a troubled young woman, has spent years caring for her brilliant but unstable father, a famous mathematician. Now, following his death, she must deal with her own volatile emotions; the arrival of her estranged sister, Claire; and the attentions of Hal, a former student of her father’s who hopes to find valuable work in the 103 notebooks that her father left behind. Over the long weekend that follows, a burgeoning romance and the discovery of a mysterious notebook draw Catherine into the most difficult problem of all: How much of her father’s madness—or genius—will she inherit?

Credit: Conor Horgan

DAVID AUBURN is a playwright, screenwriter, and director. He is currently directing Abe Lincoln in Illinois, at Berskhire Theatre Group, where he also serves as Associate Artistic Director.


Plays include Summer, 1976 (now available on Audible); The Adventures of Augie March (based on the Saul Bellow novel); Lost Lake; The Columnist; and Proof (2001 Pulitzer Prize, Tony Award, New York Drama Critics Circle Award). His Radio Plays can be heard hereFilm work includes "The Girl in the Park" (writer/director), "Georgetown," and "The Lake House". 

Stage directing credits include Long Day's Journey into Night (Court Theatre, Chicago); Photograph 51, Dracula, The Skin of Our Teeth, The Petrified Forest, Cat on a Hot Tin Roof, Anna Christie, A Delicate Balance, Period of Adjustment, Sick (all Berkshire Theatre Group); and the Off-Broadway world premiere of Michael Weller’s Side Effects (MCC).

“When we think of the great American playwrights, we think of Arthur Miller and Eugene O’Neill and Lillian Hellman, in earlier generations; Wendy Wasserstein and Tony Kushner, Jon Robin Baitz and Donald Margulies today: They are always writing about big ideas and wrapping them in family squabbles that get us where we live. Welcome David Auburn to the club.” - New York Magazine

“…combines elements of mystery and surprise with old-fashioned storytelling to provide a compelling evening of theatre…[PROOF is a] smart and compassionate play of ideas.” - New York Daily News

“PROOF surprises us with its aliveness…Mr. Auburn takes pleasure in knowledge…At the same time, he is unshowily fresh and humane, and he has written a lovely play.” - New York Observer

“[A] wonderfully funny…ambitiously constructed work…” - Variety

Meet the Cast

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Sandy Clancy

Sandy is a graduate of Johns Hopkins University who is delighted to be returning to Studio Theatre Worcester after portraying Alicia in The Thanksgiving Play. Other shows include Emmy in A Doll’s House, Part 2 (The John Astin Theater), Agnes in She Kills Monsters (The JHU Barnstormers), Sherlock Holmes in Hound of the Baskervilles (The John Astin Theater), and Fairy May in The Curious Savage (The JHU Barnstormers). She thanks her friends, family, and this amazing team for all of their support.

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Mike Daniel

Mike is a Worcester native who is excited for his STW debut in Proof. After majoring in Communications with a focus in Theatre at Fitchburg State University, Mike has devoted his life to pursuing a career in performing. His credits include The Edinburgh Fringe Festival (Edinburgh, Scotland), Pure Theatre (Charleston, SC), Worcester County Light Opera Company (Worcester, MA), Dramatically Incorrect (Lowell, MA) and American Classics Repertory Company (Putnam, CT). In his downtime, Mike enjoys writing, going to metal concerts, working out at the gym, and being around loved ones. He extends a heartfelt "thank you" to everyone at STW for the warm welcome, his friends and family for their love and support, his cats (Baxter and Bo), Ben and Jerry's ice cream, and of course, his favorite bands: Sevendust & Nightwish! PUT SOME STEAK ON IT!

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Sonya Richards

Sonya is delighted to make her debut with SWT! She is a Worcester-born stage & screen actor, model, and a former living statue artist. Past stage credits include Cassie Cooper in Rumors (WCLOC Theater Company), Detective Inspector Gaskill in The Girl on the Train (Theatre of Northeastern CT, Inc.), Pauline Clench in One Man, Two Guvnors’ (TCAN Players), Blanche Cooke in Night Watch (Calliope Productions Inc.), and Emily Webb in Our Town (Yorick Ensemble; BroadwayWorld Regional Awards Boston 2021- Best Performer in a Play [non-professional] winner.) When not performing, you can likely find Sonya behind a ticket office window. In her free time, she enjoys watching Classic Hollywood films, cooking, sewing/costuming, and general crafting. Sonya would like to thank those who have always supported her creative endeavors over the last two decades. Broken legs wished to her cast and creative team!

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Brad Walker

Brad is very excited about having the opportunity to make his debut at Studio Theatre Worcester with so many talented people.  Brad studied acting at Washington University in St. Louis, and the Globe Theatre in London.  His theater credits include: Of Mice and Men (George), Rumors (Glenn Cooper), Crimes of the Heart (Doc Porter), 1776 (John Hancock), Greetings! (Andy Gorsky), One Flew Over the Cuckoo’s Nest (Dr. Spivey) and The Diary of Anne Frank (Otto Frank) amongst others.  His film appearances include VERY brief appearances in Black Mass, several other major motion pictures, and various independent films.


“INTO THE BREECHES! continues through December 18th and is a pleasant distraction for any theatregoer seeking humorous theatrical alternatives to the standard holiday fare."

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