Eric Lange guest stars as Radzinsky in the upcoming episode of Lost, "Namaste." Radzinsky is the famously mysterious Lost character that killed himself while partnering with Kelvin Joe Inman in the Swan.
A picture from Lost season three, episode two, "The Man Behind the Curtain" of Sterling Beaumon as a young Ben Linus during a flashback. Young Ben is returning next episode!
Sonya Walger stars as Penelope "Penny" Widmore on ABC's Lost. Penny is the daughter of Charles Widmore and had a relationship against her father's wishes with Desmond, with whom she had a child, Charlie.