Who do you think could perfectly fit Harley Quinn character?

[I´mtheMoney]

I did a deep search and so far the best are:
1) Kristen Bell
2) Brittany Murphy
3) Michelle Williams
4) Ali Larter
5) Katie Holmes
6) Pamela Anderson ha ha!
7) Holly Hunter
8) Brea Grant(Heroes)
9) Mia Sarapochiello(Birds of Prey)
10) Heather Graham
11) Summer Glau

What do you think? Which one is the best?
Any suggestions?