On Tuesday night in Hollywood, the cast and creatives behind NBC’s “This Is Us” took a break from filming the sixth and final season of the hit family drama to celebrate the show’s impact on the fans, their careers and network television as we know it.

But the cast isn’t letting the nostalgia of this victory lap overwhelm them — at least not just yet.

“There’s no time for emotions on this set,” Milo Ventimiglia, who plays the late Pearson patriarch Jack, quipped, tells Variety. “I’ve been up since 3 in the morning!”

“I’m sure toward the end, we will begin to get emotional, but not yet, not right now. We’ve got a lot of work to do,” he added.

For Mandy Moore, a lot of that pent-up emotion will play well on-screen, as her character Rebecca goes on a bit of a “farewell tour” this season.

“It’s obviously deeply heartbreaking, but Rebecca has got so much grace and compassion for the way people are inevitably going to have to pick up the pieces of life around her,” Moore teased. “And she just is so present and appreciative of all the moments with her family.”

Ventimiglia and Moore were joined on the black carpet for the special kick-off celebration held at Paramount Studios by their on-screen kids, Sterling K. Brown (Randall), Justin Hartley (Kevin) and Chrissy Metz (Kate) and the whole extended Pearson family, including Susan Kelechi Watson (Beth), Chris Sullivan (Toby) and Jon Huertas (Miguel).

The next generation of Pearson clan were also represented at the event, with Eris Baker (Tess), Faithe Herman (Annie) and Lyric Ross (Deja) posing alongside Asante Blackk (Malik, Deja’s on-screen beau). Rounding out the family reunion were Griffin Dunne (Nick), Caitlin Thompson (Madison) and the newest member of the “This Is Us” group, Chris Geere (Phillip), who were on hand to celebrate as series creator Dan Fogelman toasted to the beginning of the end.

Read on as the cast of “This Is Us” reflect on the Emmy, SAG and AFI-award winning show’s legacy and dish about what’s to come in the final episodes.