Three days after giving birth, Kaley Cuoco posted the picture her fans had been waiting for: fiancé Tom Pelphrey holding both of the couple’s daughters, three-year-old Matilda and newborn Philomena, together at home. The photo went up on her Instagram Stories on Thursday, October 15, alongside a short video of the family dog getting acquainted with the baby.
Philomena Carmine Bobby Pelphrey was born on Monday, October 12, 2026. Cuoco, 40, announced the arrival on Instagram with hospital and home photos and a caption that read, in part, “There are no words to describe this feeling once again. What a blessing.” She called the newborn “our little Philo” and signed off with a line aimed squarely at her older child: “Family officially complete” and “Time to bring Matilda’s baby home!”
What the family has shared since
The follow-up posts were domestic rather than staged. Besides the picture of Pelphrey with both girls, Cuoco shared a clip of the family’s Cane Corso mix, Dahlia, whom she calls Dolly, licking the baby. Her caption over that video was a small statement of household policy: “Let dogs be dogs. Let them sniff and lick and do what they do. They are part of the family too.” A third clip showed Pelphrey asleep on the couch with Philomena on his chest.
Pelphrey, 44, posted his own set of photos with the words “Another miracle. Welcome to our family youngest queen!” and a tribute to Cuoco: “Kaley you showed up in every way as a partner and a mom even when you weren’t feeling your best.” Her former Big Bang Theory co-star Kunal Nayyar was among the first to comment, and Oh Norman!, the pet products business Cuoco launched in 2023, sent its congratulations from the brand’s own account.
One detail in the name links the two girls. Their older daughter is Matilda Carmine Pelphrey, so both sisters share the middle name Carmine, which is also the middle name of Cuoco’s father, Gary Carmine Cuoco. The couple have not said publicly why they chose it.
From Penny to producer
The birth lands in one of the busiest stretches of Cuoco’s working life. Born in Camarillo, California, in 1985, she was a child actor in the 1990s and had her first lead role as Bridget Hennessy on the ABC sitcom 8 Simple Rules from 2002 to 2005. In September 2007 she began 12 seasons as Penny on the CBS sitcom The Big Bang Theory, which ran until 2019; by August 2014 she and co-stars Johnny Galecki and Jim Parsons were each reported to earn about $1 million an episode.
Her second act was built on ownership rather than casting calls. In October 2017 she founded Yes, Norman Productions, which signed a first-look deal with Warner Bros. Television. Its first project, The Flight Attendant, premiered on HBO Max in November 2020 with Cuoco as both star and executive producer, playing Cassie Bowden across two seasons through 2022. The role earned her Primetime Emmy nominations for lead actress in a comedy series in 2021 and 2022. She has also voiced the title role in the animated Harley Quinn since 2019, led Based on a True Story from 2023, and is listed as star and executive producer of the 2026 series Vanished.
Pelphrey has had a strong year of his own. In September he won the Primetime Emmy for Outstanding Supporting Actor in a Drama Series for Task, and used part of his speech to thank his “very pregnant” fiancée.
A family timeline
- May 2022: Cuoco confirms her relationship with Pelphrey, after the pair were introduced at the season 4 premiere of his series Ozark.
- October 2022: She announces on Instagram that they are expecting their first child.
- March 30, 2023: Matilda is born.
- August 14, 2024: The couple announce their engagement.
- June 2026: Cuoco announces her second pregnancy.
- October 12, 2026: Philomena is born.
Counting from Matilda’s birthday on March 30, 2023, to October 12, 2026, the gap between the sisters works out to three years, six months and 12 days. Speaking after his Emmy win, Pelphrey had described the run-up as “switching rooms, swapping things around, and laughing at how different it is from one to two.” Cuoco’s own verdict, posted with the first photos of Philo, was four words long: “Family officially complete.”
Further reading
Image: Gage Skidmore, CC BY-SA 2.0 via Wikimedia Commons
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