Who Is Kaley Cuoco's Sister? All About Briana Cuoco

Mar. 15, 2025

Kaley Cuoco and Briana Cuoco attend the LA Premiere “Between Two Ferns: The Movie” in 2019.Photo:Axelle/Bauer-Griffin/FilmMagic

Axelle/Bauer-Griffin/FilmMagic

Kaley Cuocohas a very close bond with her sister Briana Cuoco.

After auditioning for NBC’sThe Voicein 2013, Briana toldE! Newsthey have a tight-knit family and are all very supportive of each other.

“My sister and my parents, we all have just forever and ever wanted to be rocks and supports for each other," she said. “Kaley is that for me and I am that for her, and it was incredible having her there at truly one of the best moments of my life. My parents are just the best people on the planet and they’re so happy for me.”

While they have each pursued individual acting careers, Briana and Kaley have also appeared on screen together a few times over the years. Briana also had a recurring role on her sister’s hit show,The Flight Attendant.

“She’s absolutely one of my best friends in the world,” Briana toldExtraat the premiere of season 2 in April 2022. “I just love her so much and like her success and joy and all that stuff only elevates mine and vice versa … her light shines on me and my light shines on her.”

Kaley’s support for her sister also extends to her personal life. Not only did she see Briana marry Brian Logan Dales on New Year’s Eve 2024 — she alsoofficiated the wedding ceremony.

So, who is Kaley Cuoco’s sister? Here’s everything to know about Briana Cuoco.

She’s younger than her Kaley

Kaley Cuoco and her sister, Briana Cuoco.Kaley Cuoco Instagram

Kaley Cuoco Instagram

In November 2022, Kaley revealed that the pair are “birthday twins” in anInstagrampost dedicated to her sister. “Happy happy happy to the best girl I know! @bricuoco you shine inside and out and everyone that you knows you, loves you, but I love you the most!! Nothing makes me happier than being birthday twins,” she said in the caption.

She was onThe Voice

Briana Cuoco on The Voice in 2013.Tyler Golden/NBCU Photo Bank/NBCUniversal/Getty

Tyler Golden/NBCU Photo Bank/NBCUniversal/Getty

Brianaauditioned for season 5ofThe Voicein 2013. She wowed the judges with a rendition ofLady Gaga’s hit song “You and I” and landed a spot onChristina Aguilera’s team.

Kaley was backstage during her sister’s audition and teared up over her making it on the show. “She’s always put herself on the back burner for everyone else,” she said. “There is no one who deserves this more.”

Speaking withExtrain October 2013, Briana revealed that her sister was actually the one who encouraged her to audition forThe Voice.

“She was amazing,” she said about her sister’s support. “She actually, to be honest with you, has been telling me to do it for years, since the beginning. She was like, ‘You have to get onThe Voice, it’s the best show’ … and the opportunity came, and timing was everything, and it just happened.”

Briana switched toBlake Shelton’s team during the Battle rounds before she was ultimately eliminated in the Knockouts. During an appearance onLate Night with Seth Meyersin May 2016, Kaley explained why she tweeted Shelton about her disappointment with his decision.

“You know, I just really had to go to bat for my sister there,” she said. “She was living all my dreams on that show … I wished I was on the stage.”

She had a recurring role inThe Flight Attendant

Briana Cuoco and Kaley Cuoco attend the Los Angeles Season 2 premiere of “The Flight Attendant”.Phillip Faraone/FilmMagic

Phillip Faraone/FilmMagic

The two sisters are both actors, and Briana even landed a recurring role on Kaley’s HBO show,The Flight Attendant. She played a character named Cecilia in the two seasons of the show.

While Kaley was the star and executive producer ofThe Flight Attendant, she didn’t make the decision to cast her sister. In April 2022, she toldColliderthat she wasn’t aware Briana had auditioned until she started watching self-tapes for the part of Cecilia.

“I wrote the group [of producers], and I was like, ‘My sister auditioned? Oh, my God.’ I was like, ‘Okay, I’m gonna take myself out of this because I’m biased, and I think she’s the most amazing thing, ever,’” she said. “So, I took my opinion out and I was like, ‘This is not a fair thing. You guys decide.’ And the studio approved her, the network loved her, and she got the job really totally on her own and made it her own.”

Kaley also opened up about the joys of working with her sister. “First of all, having my sister around, because she’s my favorite person, has been a dream to be able to work with her. This season, her character went to Iceland, so we got to be in Iceland together, which was a dream,” she added at the time.

At the season 2 premiere in April 2022, Briana spoke withExtraabout how “special” it was to be celebrating her sister’s accomplishments since the first season of the show came out during the COVID-19 pandemic.

“It’s very special, you know, especially because we didn’t get to do it first season and celebrate this accomplishment that everyone has put so much work into, so I’m very proud,” she said. “It’s also very special just to be next to her on the carpet and celebrating her. It’s very fun. I’m so happy to be here.”

In addition toThe Flight Attendant, Briana has made appearances on two other shows starring her sister:The Big Bang TheoryandHarley Quinn.

She’s also a dancer and choreographer

Briana Cuoco and Kaley Cuoco attend People and EIF’s Annual Screen Actors Guild Awards Gala in 2016.Kevin Mazur/Getty

Kevin Mazur/Getty

Although Briana has mainly focused on her acting and singing career in recent years, she started out as a dancer. In an October 2019 interview withVoyage LA, she told the outlet that she started performing at a young age.

“I did a lot of print work and commercials as a kid. After my parents realized I also loved to sing, they put me into singing lessons and that transitioned into doing a lot of musical theatre,” she said. “In middle school, I started dancing seriously and throughout high school that became my sole focus. After graduating, I worked briefly as a dancer on shows likeGleeandAmerica’s Got Talentbut I quickly realized being a dancer wasn’t what I was meant to do, my heart was with singing and acting.”

According to her website, Briana has danced alongsideNE-YO,Pitbull,Big Time RushandSnoop Dogg. She also choreographed dance routines that were seen onTwo and a Half Men,Mom,The People’s Choice Awards, Young SheldonandThe Big Bang Theory.

She has a clothing brand

Kaley Cuoco and her sister, Briana Cuoco.Briana Cuoco Instagram

Briana Cuoco Instagram

Despite not having a business background, Briana pushed herself to learn more about the profession while building her brand.

Briana shared photos of the party onInstagramwith the caption, “a very good night 😍💖can’t wait to be an aunt to this little angel.”

Kaley officiated her wedding in December 2024

Brian Logan Dales and Briana Cuoco attend Prime Video’s Influencer Cocktail Party and Screening for “With Love” Season 2 in 2023.JC Olivera/Getty

JC Olivera/Getty

Briana began dating the lead singer of The Summer Set, Brian Logan Dales, in 2021. She toldExtrain April 2022 that they had rekindled their relationship after a previous attempt at dating.

“He’s wonderful. It hasn’t been that long. We’ve been friends for years, we’ve been friends for maybe four years at this point and dated briefly before, and now we’re back in it, and it’s been about 8 or 9 months at this point,” she said. “But it’s like … he’s just it … It’s the most wonderful, easy thing. It’s the best thing in my life.”

Briana and Dales tied the knot on New Year’s Eve in 2024 with Kaley officiating the ceremony, while her daughter — Briana’s niece — Matilda served as flower girl.

In a post onInstagram, Kaley shared photos from Briana’s big day, including some taken at the Cathedral of St. Vibiana in Los Angeles, where the wedding was held.

She has a dog

Briana Cuoco.Briana Cuoco Instagram

Briana is a proud dog mom! She and Dales parent a rescue dog named Joni, who is a Great Pyrenees and Poodle mix.

Joni the dog has her ownInstagrampage and was the star of professional black-and-white portraits the couple took in August 2022. Briana posted some images from the shoot onInstagramand called them the “impromptu family portraits of our dreams.”

source: people.com