Their love has always been worth it.
Ahead of This Is Us' sixth and final season, which kicks off tonight, Jan. 4, Milo Ventimiglia reflected on playing the Pearson patriarch alongside TV wife Mandy Moore. And, as he exclusively told E! News, he and Mandy are just as much a unit off-screen as they are on-screen.
"I remember saying to her that I'm not going to be happy unless you're happy," he shared. "That's been the consistent thread for Mandy and I, we both just invest so much. We communicate so much."
Viewers were first introduced to the charming and grounded Jack Pearson and his loving wife, Rebecca, in the first episode of This Is Us, which debuted on Sept. 20, 2016, to some 10 million viewers. Before long, viewers turned into This Is Us fans, who couldn't love Jack and Rebecca's relationship more.
And while viewers were falling for Jack and Rebecca on-screen, Milo revealed that he became a huge Mandy fan off-screen.
"I just think the world of her," he gushed. "She's wonderful."
The Gilmore Girls alum didn't stop there, as he went on to call the "Only Hope" singer "incredibly, naturally talented," adding, "She's very connected to what she does. She works incredibly hard."
Because of this, Milo admitted to being "always inspired by Mandy." But it's not just Mandy's work ethic that has impressed Milo, who credited the singer-turned-actress for having a smart work-life balance.
"She puts a lot of effort into the work," he explained, "but when the work is done, she leaves it in a studio. She walks away from it. And she's...passionate about something else: Her family, her music, her friends, giving back to community. She's a very inspirational woman."
For a closer look at the This Is Us cast's incredible bond, check out E! News' inaugural digital cover story, which digs deep into the show's final chapter.
This Is Us premieres tonight, Jan. 4, at 9 p.m. on NBC.
(E! and NBC are both part of the NBCUniversal family.)