In the Modern Family episode “The Escape,” while Claire (Julie Bowen) and Mitchell (Jesse Tyler Ferguson) visit Jay’s (Ed O’Neill) mean sister Aunt Becky (guest star Mary Louise Wilson) in a nursing home, Haley (Sarah Hyland) meets the parents of her astrophysicist boyfriend Arvin (Chris Geere). His mother Iris Fennerman is portrayed by Kate Burton. His father Malcolm Fennerman is portrayed by Jim Piddick.
— TheaterMania (@theatermania) April 5, 2016
Mean Aunt Becky is portrayed by Mary Louise Wilson. The 86-year-old actress is known for her roles on Mozart in the Jungle (Bunny), and in the films Nebraska (Aunt Martha), Stephen King’s Pet Sematary (Dory Goldman), The Money Pit (Benny’s mom), The Best Little Whorehouse in Texas (Modene), and Woody Allen’s Zelig (Sister Ruth), among others. Fun fact: Wilson played Ann Romano’s lovable neighbor Ginny Wrobliki on One Day at a Time. P.S. She’s also a Broadway star! Wilson won a Tony Award for her role in “Grey Gardens” in 2006 (see below). Modern Family airs Wednesdays at 9pm on ABC, right after Alex, Inc., and right before American Housewife.
— Playbill (@playbill) March 18, 2015