The actors, who were married for five years from 2000 to 2005, each won awards and celebrated the other’s win.
During the show, Pitt accepted his award for Outstanding Performance by a Male Actor in a Supporting Role for Once Upon a Time… in Hollywood.
“Let’s be honest, it was a difficult part,” Pitt joked. “The guy who gets high, takes his shirt off and doesn’t get on with his wife. It’s a big stretch. Big.”
The camera cut to Aniston in the crowd, who clapped and smiled at Pitt’s joke.
When Aniston accepted her award for Outstanding Performance by a Female Actor in a Drama Series for The Morning Show, many reporters caught Pitt watching her speech on the monitors backstage with a smile on his face.
“Wow,” Pitt said once he saw that she won the award.
ET Canada’s Cheryl Hickey caught up with Aniston after she accepted her award and told her about Pitt watching her speech backstage.
“You had a lot of people emotional while you were giving your speech,” Hickey told the Friends star.
“I did?” Aniston asked.
“Backstage here, you had Brad Pitt watching that monitor, crying,” Hickey told Aniston.
“No, no!” Aniston responded in disbelief.
Aniston and Pitt were photographed together saying hello at the SAG Awards.
Many viewers of the SAG Awards took to Twitter to discuss the meeting between the former power couple.
This is the second award show this year where the pair have run into each other.
“I’ll run into Jen,” Pitt said. “She’s a good friend.”
He joked that it would be the “second most important reunion of her year,” referencing the possible Friends reunion.