United Kingdom, Feb. 23 -- David Harbour was part of Millie Bobby Brown's birthday celebrations.

The Stranger Things actress turned 22 on Friday (19.02.26), and she marked the occasion with an intimate party for family and some close friends at Maison Close in New York City's Soho district.

According to TMZ and photos which have since emerged, her co-star David was among the guests at the party.

They were also joined by fellow Stranger Things actor Jamie Campbell Bower, and other attendees included her husband Jake Bongiovi, her mother and grandparents, reality stars Whitney and Connor Leavitt, and filmmaker Shawn Levy.

David played Millie's character Eleven's guardian Jim Hopper in all five seasons of the hit Netflix sci-fi show.

Be...