"Just because the show's 30, it doesn't make it a boomer," the 'Stranger Things' actor teased of the award show

For several years, the pair appeared to be the picture of wedded bliss, settling down with Allen's two children, Ethel and Marnie, in a Brooklyn townhouse that the duo completely transformed into a "weird and wonderful" paradise filled with eccentric decor.

David Harbour attends the 2025 Critics Choice Awards without his wedding ring after his split from Lily Allen.

Harbour sported an all-black look at the 2025 Critics Choice awards just days after news of his split from Allen broke

David Harbour made his red carpet return at the Critics' Choice Awards in California following news of his marriage breakdown to Lily Allen and seemed to confirm the news by not wearing his ring

David Harbour, known for his role as Jim Hopper in Stranger Things, and his wife, singer-actress Lily Allen, have decided to end their marriage after four years. The couple, who married in 2020, have been facing relationship challenges and have mutually agreed to separate.

Lily Allen and David Harbour are separating four years after they married in September 2024, multiple sources confirm to PEOPLE. "Her marriage has been crumbling," an insider tells PEOPLE exclusively,

Lily Allen and David Harbour have separated after four years of marriage and she's "devastated"—here's what happened. The reality television star also debuted a chic flipped-out bob at the soirée.

David Harbour has seemingly confirmedhis split from Lily Allen with a solo appearance at the Critics Choice Awards.

Lile Allen is "devastated" after she and husband David Harbour separated, an insider tells PEOPLE exclusively. The "Smile" singer and the 'Stranger Things' actor were first linked in January 2019, and they married in September 2020.

Stranger Things star David Harbour attended the Critics Choice Awards 2025 in Santa Monica Feb. 7, marking his first appearance since his reported breakup with wife Lily Allen.