The 2002 list was a bit different
Rank Name Net Worth
1. Santa Claus $ ∞
2. Richie Rich 24.7 billion
3. Oliver "Daddy" Warbucks 10 billion
4. Scrooge McDuck 8.2 billion
5. Thurston Howell III 8 billion
6. Willie Wonka 8 billion
7. Bruce Wayne 6.3 billion
8. Lex Luthor 4.7 billion
9. J.R. Ewing 2.8 billion
10. Auric Goldfinger 1.2 billion
11. C. Montgomery Burns 1 billion
12. Charles Foster Kane 1 billion
13. Cruella De Vil 875 million
14. Gordon Gekko 650 million
15. Jay Gatsby 600 million
http://www.forbes.com/2002/09/13/400fictional.html