Sian Barbara Allen (July 12, 1946 – March 31, 2025) was an American actress known for her television appearances in the 1970s. Born in Reading, Pennsylvania, she honed her craft at the Pasadena Playhouse before making her screen debut on the series O'Hara, U.S. Treasury in 1971. Allen's career included recurring roles on popular shows like The Waltons, Gunsmoke, and Ironside, as well as starring in television films such as Scream, Pretty Peggy (1973) and The Lindbergh Kidnapping Case (1976). She also ventured into feature films, notably appearing in the thriller You'll Like My Mother (1972) and the Western Billy Two Hats (1974). Her performance in You'll Like My Mother earned her a Golden Globe Award nomination for New Star of the Year. After her last role in an episode of L.A. Law in 1990, Allen retired from acting. She was married to Peter Burr Gelblum and had a daughter named Emily. Allen passed away from Alzheimer's disease in Chapel Hill, North Carolina, at the age of 78.

Sîan Webber, born in 1959, is a celebrated British actress known for her recurring role as Ritchie Scott in the BBC soap opera EastEnders. Her portrayal of this character began in 2005 and has continued to captivate audiences, with appearances extending up to 2023. Throughout her illustrious career, Webber has showcased her talent in a diverse range of television shows and films. Her notable appearances include roles in "Pie in the Sky," "Howards' Way," "The Bill," "Highlander: The Series," "Holby City," "Casualty," "Midsomer Murders," "Gunpowder," and the 2021 film "Venom: Let There Be Carnage." With a versatile and compelling presence, Sîan Webber has left an indelible mark on the entertainment industry, captivating audiences with her remarkable performances across various genres. For more information about her work, you can visit Sian Webber's IMDb page.

Sian Hayley "Leo" Proctor, born on March 28, 1970, is a multi-talented American commercial astronaut, geology professor, artist, author, and science communicator. Notably, she made history as the first female commercial spaceship pilot and the first artist selected to be an astronaut on the all-civilian Inspiration4 orbital spaceflight on September 15, 2021. During this mission, she piloted the Inspiration4's SpaceX Crew Dragon space capsule, becoming the first African-American woman to pilot a spacecraft. Proctor has also been actively involved in science education, serving as the education outreach officer for the first Hawaii Space Exploration Analog and Simulation (HI-SEAS) Mission. In 2024, she was chosen as a U.S. Science Envoy for the United States Department of State, marking another milestone in her illustrious career. Proctor is a noted Afrofuturist artist, poet, and author, and the first African American astronaut to paint in space. Her contributions to science education include various roles such as being a PolarTREC teacher and a participant in the Astronomy in Chile Educator Ambassadors Program (ACEAP). Throughout her career, Proctor has consistently demonstrated her passion for space exploration, education, and artistic expression, making her a prominent figure in the field and an inspiration to many.

Sian Samantha Blake, also known as Syan Blake, was a British actress best remembered for her portrayal of Frankie Pierre in the popular BBC soap opera EastEnders. Born in London, Blake began her acting career in the mid-1990s, earning roles in television shows like Casualty, Doctors, and The Bill. After retiring from acting, she pursued a career as a sign language teacher and interpreter. Tragically, in December 2015, Blake and her two young sons went missing, sparking a nationwide search. Their bodies were later discovered at their family home in Erith, London. Her partner, Arthur Simpson-Kent, was found guilty of their murders and received a whole life sentence. The case garnered significant media attention and raised questions about the handling of the investigation. Despite the tragic end to her life, Sian Blake is remembered for her talents as an actress and her commitment to sign language education.

Sian Adey-Jones, born in December 1957, is a notable Welsh personality recognized for her accomplishments as a glamour model and beauty pageant titleholder. Her journey to the spotlight began when she clinched the coveted Miss Wales title in 1976, following which she secured the second runner-up position in the prestigious Miss Universe 1976 competition. Notably, she also achieved the first runner-up position in Miss United Kingdom 1976, showcasing her remarkable presence in the pageantry world. Subsequently, she transitioned to a successful modeling career, gracing the pages of The Sun newspaper as a Page 3 girl and making a rare fully nude appearance in the September 1983 edition of Mayfair. Moreover, she made a notable appearance in the 1985 Bond movie, "A View to a Kill." Currently residing on the beautiful island of Ibiza with her husband Rocco, Adey-Jones is a proud mother to her son, Dylan, and an adopted daughter, Tallulah. Her enduring legacy continues to captivate enthusiasts of beauty pageants and modeling.