
Briana Cuoco and Kaley Cuoco.
(Photo by CHRIS DELMAS/AFP via Getty Images)Kaley Cuoco had a special role in her little sister’s big day!
The Big Bang Theory star, 39, presided over the wedding between sister Briana Cuoco36 and Brian Logan Dales35, which took place on Tuesday, December 31 in the Cathedral of St. Vibiana in Los Angeles.
Brianna said Entertainment tonight on Thursday, Jan. 2, that Kaylee’s judging was “so special to me.”
While mom Kaylee was busy with her official duties, her 22-month-old daughter Matildawith whom the actress shares Tom Pelfreyy, played the role of flower girl for her aunt’s big day.
Kaley shared photos from the special occasion on social media via her Instagram on Thursday, January 2, and raved about her participation.
“⭐️ Best NYE yet 💫,” she captioned the post. “Getting to marry my sister and her love, blending two amazing families surrounded by our friends, beautiful surroundings, a midnight kiss with the love of my life and a perfect flower girl 🌹 what a night to remember!”
Kaley also shared a few posts via her Instagram storyincluding adorable clips of himself and Pelfrey walking Matilda down the aisle in her flower girl outfit.
per ET, the cathedral where brianna and dales got married was decorated with a ‘french museum’ theme. Red lighting, 1,200 candles and Renaissance paintings projected onto the ceiling created the “dark and gloomy” mood they were looking for.

Kaley Cuoco and Brianna Cuoco.
(Photo by Getty)During the wedding, there was a nod to New Year’s Eve, with fireworks projected onto the ceiling as the clock changed to midnight.
Briana wore a Kim Kassas Couture strapless corset-style dress for the couple’s ceremony and changed into a Selkie mini dress for her reception outfit. Groom Dales, who is the lead singer of The Summer Set, wore a black double-breasted tuxedo for the big day.
Following the ceremony and reception, guests were treated to a late night dinner from Taco Bell.
Kaley previously shared her joy at her sister’s relationship, announcing via her Instagram in September 2023 that her brother was engaged.
“Engagement of the year!! 🩷🩷🩷 we love you @bricuoco @brianlogandales !! A family for life! 💫 congratulations!!!!!!!” Kaylee wrote.
On her own Instagram account at the time, Brianna shared photos of the proposal and captioned the post “9.12.23 💍.”
Brianna has previously spoken about the close bond she shares with her sister and the rest of her family.
“My sister and my parents, we all wanted to be each other’s rocks and support forever,” she said And! News in 2013 “Kaylee is that to me and I am that to her and it was amazing to have her there at one of the best times of my life. My parents are just the best people on the planet and they are so happy for me.”