Katherine Heigl, born on November 24, 1978, is a well-known American actress. She gained fame for her role as Dr. Izzie Stevens on the popular ABC medical drama series Grey's Anatomy, for which she received the Primetime Emmy Award for Outstanding Supporting Actress in a Drama Series in 2007. Heigl's acting career began with roles in films such as "That Night" (1992), "My Father the Hero" (1994), "Under Siege 2: Dark Territory" (1995), and "Bride of Chucky" (1998). She also starred in the WB series "Roswell" from 1999 to 2002 and appeared in a variety of commercially successful romantic comedies including "Knocked Up" (2007), "27 Dresses" (2008), and "The Ugly Truth" (2009). In addition to her acting, Heigl has served as an executive producer on several television projects. Notably, she was involved in the production of the Netflix series "Firefly Lane" (2021–2023) and the NBC series "State of Affairs" (2014–2015). Heigl has also demonstrated her versatility by voicing characters in animated films and starring in limited-release films. Aside from her entertainment career, Heigl has graced the covers of various publications as a model, including Maxim, Vanity Fair, and Cosmopolitan. She

Katherine Roberts Maher, born on April 18, 1983, is an American non-profit executive and the CEO and president of NPR since March 2024. Prior to her role at NPR, Maher served as the CEO of Web Summit and chair of the board of directors at the Signal Foundation. She is also known for her tenure as the chief executive officer and executive director of the Wikimedia Foundation. Maher's career spans various organizations, including UNICEF, the National Democratic Institute, the World Bank, and Access Now, where she focused on technology, international development, and democratization.Maher's diverse educational background includes studying at the American University in Cairo, the Institut français d'études arabes de Damas in Syria, and earning a bachelor's degree from New York University in Middle Eastern and Islamic studies. Throughout her career, Maher has been actively involved in advocating for global digital inclusion and addressing challenges related to disinformation, particularly in critical events like elections and the Covid pandemic.As a prominent figure, Maher has held positions at the Atlantic Council, the US Department of State's Foreign Affairs Policy Board, and currently serves as the board chair of the Signal Foundation. Her leadership and strategic vision continue to impact the non-profit sector and digital inclusion initiatives.

Katherine Parkinson is a highly acclaimed English actress known for her versatile performances on stage and screen. She gained widespread recognition for her role as Jen Barber in the Channel 4 comedy series The IT Crowd, earning accolades such as the British Comedy Best TV Actress Award and a BAFTA Television Award for Best Female Comedy Performance. With a strong foundation in acting from the London Academy of Music and Dramatic Art, Parkinson has showcased her talent in various plays, including The Seagull, Cock, and Home, I'm Darling, earning a nomination for the prestigious Olivier Award for Best Actress in a Play. Her impressive career also includes notable appearances in the series Doc Martin and Humans, as well as in films such as The Boat That Rocked and The Guernsey Literary and Potato Peel Pie Society. Beyond her acting prowess, Parkinson has ventured into writing, with her debut work as a playwright, Sitting, receiving critical acclaim. With her exceptional range and captivating performances, Katherine Parkinson continues to be a prominent figure in the entertainment industry, captivating audiences with her talent and dedication to her craft.

Katherine Louisa Ryan, born in June 1983, is a multi-talented Canadian comedian, writer, presenter, actress, and singer. Her impressive presence in British TV and radio panel shows includes appearances on popular programs such as 8 Out of 10 Cats, Never Mind the Buzzcocks, A League of Their Own, Mock the Week, Would I Lie to You?, QI, Just a Minute, Safeword, and Have I Got News for You. Ryan's versatility extends to acting, with notable roles in television sitcoms like Campus, Episodes, and her own Netflix show, The Duchess. As a stand-up comedian, she has graced the stage on BBC's Live at the Apollo and released two live stand-up specials on Netflix: Katherine Ryan: In Trouble (2017) and Katherine Ryan: Glitter Room (2019).Ryan's journey to success began in Sarnia, Ontario, where she was raised alongside her two sisters. Her career path took an unexpected turn when she ventured into city planning at Ryerson University in Toronto. While studying, she also worked at the restaurant chain Hooters and dabbled in stand-up comedy at open mic nights, eventually honing her routine. After winning the Funny Women award in 2008, Ryan's comedic prowess led her to a successful television career, with appearances on various shows and her own comedy tour, Kathbum. Additionally, she has ventured into acting, with roles in popular series and

Katherine Boyer Waterston, born on March 3, 1980, in Westminster, London, is a British–born American actress known for her captivating performances in various films. She graduated from the New York University Tisch School of the Arts and made her feature film debut in Michael Clayton (2007). Waterston's breakthrough role came in Inherent Vice (2014), followed by her portrayal of Chrisann Brennan in Steve Jobs (2015). She gained widespread recognition for her role as Tina Goldstein in Fantastic Beasts and Where to Find Them (2016) and its sequels. Her diverse filmography includes appearances in Alien: Covenant (2017), Logan Lucky (2017), The Current War (2017), Mid90s (2018), and The World to Come (2020). Waterston's talent extends to the stage as well, with notable performances in various plays. She is also a vocal supporter of transgender rights and has been actively involved in advocating for equality. With a strong and varied body of work, Waterston continues to captivate audiences with her compelling performances, making her a prominent figure in the entertainment industry.