'This Is Us's Milo Ventimiglia Stays In Character While Presenting With TV Daughter Chrissy Metz at MTV Awards

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Milo Ventimiglia IS Jack Pearson!

The This Is Us star stayed in character while presenting Best Duo with his TV daughter, Chrissy Metz, at the MTV Movie and TV Awards in Los Angeles on Sunday.

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"Guys, I'm so excited to be presenting Best Duo on the MTV Movie and Television Awards," Metz said to the crowd after walking up the stage arm-in-arm with Ventimiglia.

"You know, Princess, these MTV awards, they were a little different in my day," the actor said, just like his character.

"What are you doing? Like, I know that I play your daughter, but you're only three years older than me," Metz asked Ventimiglia, who refused to break character.

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"You know, things were a lot simpler when I was a kid. You know, in the '90s, we had movies like Beauty and the Beast. On TV, we were watching Full House," he said. "Blink 182 was making a go of it on tour, and you know, we just couldn't stop talking about O.J. Simpson."

"So, nothing's really changed?" Metz laughed.

"Nope, nothing. Nothing at all," Ventimiglia confirmed, before presenting the award to another father-daughter duo, Hugh Jackman and his Logan daughter, Dafne Keen.

Ventimiglia, Metz, and the rest of the This Is Us cast later won for Best Tearjerker, with Lonnie Chavis adorably accepting the award with his on-screen dad.

"Thank you very much. We are sorry that we made you cry," Ventimiglia said.

"Yeah, I can't keep thinking that this is not heavy," Chavis adorably confessed to the audience before thanking god, his family and "all my fans" for the award.

The NBC series is also up for Show of the Year, Metz is nominated for Next Generation, and Mandy Moore for Best Actor in a Show.

WATCH: Mandy Moore & Milo Ventimiglia Announce Pittsburgh Steelers' 2017 NFL Draft Pick - Jack & Rebecca Would Be Proud!

Ventimiglia has a lot of love for his co-stars.

See the actor gush to ET about Moore, Metz and Susan Kelechi Watson's appearances in People's World's Most Beautiful issue in the video below. 

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