Directed by Kate Galvin, Proof stars Bill Van Horn as Robert, David Raphaely as Hal, Alex Keiper as Catherine and Krista Apple as Claire.
Here's how Walnut Street bills the production: "Everyone has parents and everyone aspires to be like them in some way. But what happens when there's a distinct possibility that we may inherit their talent—and their madness? Proof is a remarkable and luminous play about fathers and daughters, genius and insanity, legacy and truth. The play introduces us to a young woman, haunted by her father's death. She seems to have inherited his talent for numbers. Or has she?"
Walnut Street's Proof, With Bill Van Horn, David Raphaely, Alex Keiper and Krista Apple
The Independence Studio on 3 is located at 825 Walnut Street in Philadelphia, PA. For more information or tickets, call (215) 574-3550 or (800) 982-2787 or visit WalnutStreetTheatre.org or Ticketmaster.com.