There are actors who immerse themselves in a part--and then there is Robert Hardy. When this classical actor got the role of Henry V on both the stage and the TV series "An Age of Kings," he actually trained to be an expert with the longbow. He even went on to write two books about the history of the longbow and created a documentary on the Battle of Agincourt (Henry V's famous victory over the French, for which historians largely credit the English king's tactical use of the longbow). Hardy later rose to prominence on TV with his portrayal of entrepreneur Alec Stewart on "Mogul" (original title, "The Troubleshooters"), a tale of corporate intrigue involving an oil company. In the 1970s and '80s, he became best known to television audiences for his performance as Siegfried Farnon on the extremely popular veterinarian drama "All Creatures Great and Small," though he received his most widespread critical acclaim for playing Winston Churchill. In fact, Hardy played the stalwart war-time leader five times, most notably in the award-winning "Winston Churchill: The Wilderness Years." Time and again, Hardy has displayed the requisite gravitas to play powerful but flawed men, whether they be President Franklin D. Roosevelt or Cornelius Fudge, the fussy and paranoid Minister of Magic in the "Harry Potter" franchise.