Earlier in the thread I identified the older woman in the play as 88 year old Fernanda Montenegro, which was wrong.
The older woman is actually Vera Barreto Leite, a mere 81 years old!
She's a bit of a Brazilian acting legend,
Vera sat for Helmut Newton, Richard Avedon, Willy Rizzo, and Frank Horvat and had sex with many famous and marvelous people, including filmmaker Louis Malle, who, along with director Bernardo Bertolucci, helped her flee Brazil after she was sent to prison on drug charges and tortured during the military dictatorship of the mid- to late 60s....She was famous and posing naked for magazines before famous people knew they were supposed to do shit like that, and later she tinkered in drug dealing and worked as a bootlegger.
Haven't been able to find any (naked) photos of her in her younger days, but she was certainly a looker, and even in her twilight years still finds time to enjoy life, as Marcelo Drummond has just found out...