Just a comment on Harry Dresden and the characters having to exist in a somewhat "real" world. Unlike Harry Potter, Dresden lives very much in the real world - most people think he's a nut. As far as his age, from his pop culture references, he was born about the same time as Dresden Files author Jim Butcher (c. 1970). So when the books start, Harry's about 30.
Which makes him kinda young for a 1990s series, but totally appropriate for a modern one. He would have been a bit weak (powerwise) at 23, although I guess he's already killed Justin, been pronounced under the doom of Damocles, and been released from Ebenezer's care. So, he's a bit of a wild card - not a bad fit for the League.
Jack Burton from Big Trouble in Little China is, in my opinion, an excellent fit. Snake Plisken is probably better, but you have to alter his history somewhat, with Escape from New York being set in a future that never happened and all...
The best fit for the League are fantastic adventure anti-hero types. Their adventures need to be set in a mostly realistic world, and most of them need to be a bit "dark." In keeping with the original League, you'd need literary characters, or characters descended from or related to a literary character. However, one can have a lot of fun doing TV or movie characters. But in their respective stories, the character used should be the only extraordinary character. So comic book superheroes are OUT, as is Harry Potter. So, here's a few suggestions, having a bit of fun with one character's history:
- Lara Jones Croft (Granddaughter of the famous archaeologist, through her mother)
- Lee Kane (Descendent of the main character from Kung Fu)
- Kolchak, the Night Stalker
- Some the characters from the "Friday the 13th" tv series.
- Grandchildren of various pulp era (1930s-40s) characters such as:
* Rick and Evie O'Connell (The Mummy)
* Jake Cutter (Tales of the Gold Monkey)
- Thomas Veil (of Nowhere Man fame)
I'm sure I could come up with more, but there's a start.