"This is Us" is adding Michael Angarano to its cast.
Angarano will play Nicky in a recurring capacity.
Series creator Dan Fogelman previously told Deadline the show will be "diving heavy" into Jack's experience in the Vietnam War, where Nicky died.
"This is Us" announced Angarano's casting in a tweet Monday.
Angarano confirmed the news on his own account.
"i am beyond grateful and very excited to be a part of this show - my grandmother even told her dentist," he wrote.
The series follows the Pearson family throughout several points in time, and will return for a third season Sept. 25.
Angarano is known for playing Elliot on "Will & Grace" and Bertie Chickering, Jr., on "The Knick."