I really liked when Kevin was trying to get his uncle into that hospital for treatment, says Hartley.

[Nicky] just wasnt going to go and Kevin needed to walk away and blow off some steam.

And then the way that she took care of him and that bond that they had.

THIS IS US – “Songbird Road: Part Two” Episode 312 – Pictured: (l-r) – (Photo by: Ron Batzdorff/NBC)

Ron Batzdorff/NBC

I really like the bond that Rebecca [Mandy Moore] and Kevin have found.

I really enjoyed the NICU stuff being a part of that conversation, says Sullivan.

I love Eris, and shes a big ball of energy, he says.

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Ron Batzdorff/NBC

She talks a mile a minute, all the time.

Shes so excitable and effervescent, and whatnot.

But in seeing you, I know that I can do better, and I will do.

THIS IS US – “Six Thanksgivings” Episode 308 – Pictured: (l-r) – (Photo by: Ron Batzdorff/NBC)

Ron Batzdorff/NBC

And thats what the shows about.

When it starts to rain, though, Jack is faced with another liquidity issue.

To understand what these young men were up against was terrifying, says Ventimiglia.

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Ron Batzdorff/NBC

I think he was 68.

I definitely wouldve been going to Vietnam.

I just loved that scene, he says.

THIS IS US – “Vietnam” Episode 305 – Pictured: (l-r) – (Photo by: Ron Batzdorff/NBC)

Ron Batzdorff/NBC

What an amazing opportunity on the show.

So I think thats also why it really rings true to me.

Its such a convergence plot and character and time.

THIS IS US – “R & B” Episode 317 – Pictured: (l-r) – (Photo by: Ron Batzdorff/NBC)

Ron Batzdorff/NBC

Its like that show was built for that moment.

I thought that was really cute, she says.

and shes like, Yeah, do it now.

THIS IS US – “The Waiting Room” Episode 315 – Pictured: (l-r) – (Photo by: Ron Batzdorff/NBC)

Ron Batzdorff/NBC

You actually have the ring right now?

Its very easy, simple.

Its not on the Jumbotron, its just eating her favorite meal in some restaurant.

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Ron Batzdorff/NBC

I love that episode, the of experience making it, she says.

We never get to spend that kind of time with each other.

Im hoping thats the door that they open back up, says Jones.

When you work with a cat like Denis, everything is so easy and intense.

The beauty of it is going in and not knowing.

It was a mutual respect.

We just show up and then let the work happen.

You know youre going into the room with a prepared actor thats going to lift the bar.

I think thats what the show does.

Everybody is constantly raising the bar for one another.

Season 4 ofThis Is Uspremieres Sept. 24 on NBC.