This attractive, dimple-cheeked, wide-smiling and floppy-haired young leading man became the second Jimmy Olson on the ABC series "Lois and Clark: The New Adventures of Superman" in 1994, earning some publicity for being the first to play the role as a contemporarily dressed and speaking character.Justin Whalin began working in theatre in his native San Francisco when he was about 11, performing in a touring company and then the San Francisco company of "The Little Prince". When he was 14, Clint Eastwood gave him a role in "The Drowning Pool" (1988) and Whalin was then lured to Hollywood to