Jessica Kelly Siobhán Reilly, known professionally as Kelly Reilly, is a prominent English actress celebrated for her versatile performances across film and television. Born on July 18, 1977, in Surrey, England, Reilly has captivated audiences with her compelling portrayals in various genres, earning critical acclaim and a loyal fan base. Her claim to fame came with her role as Wendy in the film Russian Dolls (2005), which showcased her talent and marked a significant milestone in her career.

Reilly's acting journey began in the mid-1990s when she made her screen debut in 1995 on the British series The Biz. Her early work laid the foundation for a flourishing career, and she quickly gained recognition in the British television landscape. Throughout the years, she took on various roles that demonstrated her range and depth as an actress. Notable television credits include her leading role in the British crime drama Above Suspicion from 2009 to 2012, where she portrayed the determined detective Anna Travis. She also starred in the American psychological medical drama Black Box in 2014, the acclaimed anthology crime drama True Detective in 2015, and the historical fantasy series Britannia in 2018.

Reilly's film career began in 2000 when she appeared in the English comedy film Maybe Baby. She gained further visibility with a supporting role in the romantic drama Pride & Prejudice (2005), followed by a leading performance in the horror thriller Eden Lake (2008). Her portrayal of Mary Morstan in the blockbuster films Sherlock Holmes (2009) and its sequel Sherlock Holmes: A Game of Shadows (2011) solidified her status in Hollywood. In 2012, she starred alongside Denzel Washington in the critically acclaimed film Flight, further showcasing her ability to tackle complex characters. More recently, she took on a leading role in the thriller 10x10 (2018) opposite Luke Evans.

In addition to her film and television work, Reilly has been recognized for her talent on stage. She received a nomination for a Laurence Olivier Award for her impressive performance in After Miss Julie at the Donmar Warehouse, which ran from 2003 to 2004. Her stage presence reflects her commitment to the craft of acting and highlights her versatility as a performer.

Currently, Reilly is best known for her role as Beth Dutton in the critically acclaimed series Yellowstone, which began airing in 2018 and continues to engage viewers with its gripping storytelling and dynamic characters. Opposite Kevin Costner, Reilly has brought a fierce and complex character to life, earning her further acclaim and a dedicated following. As she continues to evolve as an actress, Kelly Reilly remains a significant figure in the entertainment industry, known for her talent, versatility, and dedication to her craft.