EXCLUSIVE: Mandy Moore Talks 'This Is Us' Dynamic With Milo Ventimiglia: 'I Feel Very Protected With Him'

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Mandy Moore has nothing but glowing words to say about her This Is Us co-star, Milo Ventimiglia.

ET's Nishelle Turner caught up with the 32-year-old actress at the Elle Women in TV event at the Chateau Marmont in Los Angeles on Saturday, where the starlet opened up about the second half of Season 1, along with her relationship with Ventimiglia, 39, who plays her on-screen husband, This Is Us father figure Jack Pearson.

"He's such a special guy, it's really not hard to have to just love him," Moore confessed. "I feel very safe. I feel very, like, protected with him."

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"I've never really felt that with somebody I've worked with before, so I feel incredibly lucky every day just to have this job, but then to get to work with him every day, too," she continued. "I know I'm in good hands."

Moore, who was recently nominated for a Golden Globe for her role as Rebecca Pearson on the hit NBC series, felt defensive when Ventimiglia failed to garner a nomination.

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"I think everyone in this cast deserved to be nominated," she revealed to ET's Carly Steel.

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Regarding the latest on This Is Us, Moore told ET that she struggled to keep the outcome of Toby's surgery a secret over the holidays. "It was terrible for the last five weeks. My family and friends were like, 'Tell me, tell me!' I'm like, 'I can't.' I wanted to keep them in suspense and not ruin the first episode for them."

As for upcoming episodes, the actress added, "They're shooting an episode right now, and I read the script and, like, hyperventilated. I literally had to text Dan, our creator, and was like, 'People aren't gonna be ready for this, 'cause I'm not ready for this.'"

Chrissy Metz, who plays Moore’s on-screen daughter, Kate, also spoke to ET at Saturday’s event and admitted that she too, got very emotional about Tuesday’s new episode.

"If I think about it, I will cry right now," Metz admitted. "I saw a screening of it last week and I almost had to excuse myself… I need to not ever be around people when I watch. It's so beautiful."

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Moore did tease that fans can expect more backstory on this week's episode: "It takes place in the past, and it's the backstory for the day the triplets are born. It's just Milo and I and then Dr. K's story and then the fireman's story. It's a really interesting and special episode in that it's only telling the story from the past."

Watch the video below for more on Moore's on-screen and off-screen dynamic with Ventimiglia, and catch This Is Us Tuesdays at 9 p.m. ET/PT on NBC.