'This Is Us': Behind the Scenes of Season 4 With the Cast (PHOTOS)

Meaghan Darwish

This Is Us won't return to NBC for Season 4 until September, but the stars are back on set filming! And by the looks of things, they're just as excited as fans are about continuing the Pearson family's story.

Officially set to return, Tuesday, September 24, in its usual 9/8c timeslot, the fourth season will see the return of familiar faces like Mandy Moore, Milo Ventimiglia, Sterling K. Brown, Susan Kelechi Watson, Chrissy Metz, Chris Sullivan, Justin Hartley, and more. In anticipation we're gathering some of the images the cast and crew have been sharing behind the scenes.

'This Is Us' Chrissy Metz on a 'Challenging' Season 4 & an 'Unexpected' Premiere

'This Is Us' Chrissy Metz on a 'Challenging' Season 4 & an 'Unexpected' Premiere

Plus, she reveals which TV mom she's dying to have guest star on the NBC drama.

Click through the gallery above for a sneak peek at Season 4 and continue to check back as we add more ahead of the fall premiere!

This Is Us, Season 4 Premiere, Tuesday, September 24, 9/8c, NBC