Directed by Wendy Goldberg, opening is Feb. 11.

The cast comprises Hugh Kennedy, Emmy Award-winning actress Michael Learned ("The Waltons"), James Lloyd Reynolds, and Patrick Gibbons and Jacob D. Wilner in alternating performances.

In Mothers and Sons, press notes state, "a woman pays an unexpected visit to the apartment of her late son’s partner, Cal, who is now married to another man and has a young son. Still coping with loss and unexplainable anger, Katherine is challenged by Cal to confront the truths of their shared past, and a future she never imagined. This eloquent and moving play explores the very essence of family and forgiveness in a changing society."

“We are honored to include Terrence’s timely and compassionate play as part of our 40th Anniversary celebration. Within an extraordinary body of work, Mothers and Sons is, to me, one of his finest plays, managing to be simultaneously intimate and epic. He is a master playwright, writing at the height of his power,” said executive producing director Sara Garonzik in an earlier statement.

Performances run Tuesdays through Sundays until March 6.

Tickets starting at $25 are available by calling the PTC Box Office at (215) 985-0420 or visiting PhiladelphiaTheatreCompany.org.