Cinematographer Kate Arizmendi announced on Sunday that she and actor Rory Culkin welcomed their first child, a daughter named Havoc Moon Alva Culkin, who was born Saturday, May 23.
Arizmendi, 38, shared the news on her Instagram Stories and posted a photo of the newborn sleeping with her tiny hands tucked under her chin, writing, "We're so in love (with) you," followed by crying emojis. She also posted a second image captured shortly after the birth — a wide‑eyed Havoc looking straight at the camera — and wrote, "15 mins after pushing her out and so alert and excited about life already."
The couple, with Culkin, 36, shown in two snaps engaging in skin‑to‑skin contact with the baby, introduced the public to the name and the moment: Arizmendi updated her January pregnancy announcement post to reveal the baby's full name as Havoc Moon Alva Culkin and described her partner as the "best papa." In another Instagram line she added, "Also hello girl baby Rory." She closed her string of posts, "We love her. She rules us already."
This is the first child for Culkin and Arizmendi. The actors’ family grows into an already child‑filled extended circle: Rory is the younger brother of Macaulay Culkin and Kieran Culkin, with Macaulay having two children with Brenda Song and Kieran having three children with Jazz Charton.
Culkin began dating Arizmendi in 2023; he was previously married to camera assistant Sarah Scrivener from 2018 to 2022. The couple made the pregnancy public in January 2026 and moved quickly from announcement to naming and sharing intimate first moments with followers on social media, a sequence Arizmendi laid out in posts spanning the weekend.
The rapid timeline and the images Arizmendi posted frame the arrival of Havoc Moon as both intensely private in its immediacy and public by design: a newborn sleeping photo, a portrait taken 15 minutes after delivery, and family skin‑to‑skin snaps all published on Instagram within a day of the birth. Those choices make clear how this family plans to introduce Havoc to the world — through carefully chosen, intimate glimpses rather than a traditional press statement.
For Rory Culkin, 36, the birth marks a clear turning point. After a marriage that ended in 2022 and a public relationship that began in 2023, he and Arizmendi have not only become parents but have also set the terms of the public's first look at their daughter: a name revealed publicly, a January post amended to display the full name, and newborn photos shared immediately after birth. Those facts show a couple comfortable sharing selected moments of parenthood in real time.
Havoc Moon Alva Culkin is now part of a growing generation of young Culkin cousins; the family, through Arizmendi's posts, has already given a first picture of how they will parent and present their child. The most consequential outcome of the weekend is straightforward: Rory Culkin is now a father, and he and Kate Arizmendi have introduced Havoc to the public with a name, images and a portrait of close family connection.
