Happy 41st birthday today to actor Billy Crudup. He starred as super man Dr. Manhattan in the blockbuster Watchmen earlier this year, and you can currently see him on the big screen as FBI boss J. Edgar Hoover opposite Johnny Depp and Christian Bale in Public Enemies. Country star Toby Keith is 48 — maybe he'll make some time for cake while working on his next studio album, due this fall. Robert Knepper, best known as T-Bag on Prison Break, is 50. The show just finished its fourth and final season, although Knepper will reprise his role in the DVD movie Prison Break: The Final Break out July 21. He will play another villain in this fall's fourth season of Heroes, co-starring with another birthday boy, Milo Ventimiglia, who's 32. Kevin Bacon, the husband of Kyra Sedgwick who next stars in the summer comedy My One and Only, is 51 today. Indie rocker Beck turns 39, and legendary actress Anjelica Huston, who won an Oscar for Prizzi's Honor in 1985, is 58.

Photo courtesy of Universal Pictures