Sonya Walger (born 6 June 1974) is a British actress. She is perhaps best known for her revealing role in the controversial HBO series Tell Me You Love Me (2007) and as Penelope "Penny" Widmore on ABC's Lost. Sonya Walger was born in London, England. She studied English Literature at Christ Church, Oxford, where she received a first class degree. Walger is fluent in English and Spanish and conversational in French, as her father is Argentinean. In 1998 Sonya Walger played Becky in one episode of Midsomer Murders. She portrayed Flic in Goodnight Sweetheart in 1999 and appeared in two episodes of the crime/drama The Vice (TV series). She played Donna Barnes on the HBO TV series The Mind of the Married Man in 2001. On the US version of Coupling, which aired in 2003, she played Sally Harper. Other acting roles have included guest appearances on Lost as Desmond's girlfriend, Penelope "Penny" Widmore and recurring roles on Sleeper Cell and CSI: NY. In 2004, Walger played Nicole Noone opposite Noah Wyle in The Librarian: Quest for the Spear. Surprisingly, given the strong dynamic between her and Wyle, she did not reprise that role in The Librarian: Return to King Solomon's Mines.