Photo Flash: First Look at Keira Keeley, Michael Pemberton and More in Merrimack Rep's PROOF

Catherine must establish the authorship of a mathematical proof found in the office of her brilliant but troubled father. The return of her estranged sister and a burgeoning romance with her father's former student complicate her pursuit for truth in this compelling Tony Award-winning mystery.

The cast includes: Keira Keeley, Michael Pemberton, Colby Chambers and Megan Byrne. Christian Parker directs.

For tickets or more information, visit: http://www.mrt.org/Proof.html

Photo Credit: Meghan Moore

The Cast

Colby Chambers and Keira Keeley

Keira Keeley and Megan Byrne

Keira Keeley and Michael Pemberton