Forget everything I've said, this is how I think Sin City 2 should look like:
Intro: Daddy's Little Girl
Jimmy - William H. Macy
Dad - Val Kilmer
Amy - Sarah Jessica Parker (erase lines to make her look younger)
A Dame To Kill For
Dwight - Clive Owen (buried in prostestics in the beginning)
Ava Lord - Maria Bello
Damien Lord - Jude Law (muscleees on him...)
Family Values
Dwight - Clive Owen
Miho - Devon Aoki
Girl that gives Dwight info behind the bar - Kristin Davis
Hell And Back
Wallace - Johnny Depp
Esther - Marsha Thomason
Purvis - Steve Buscemi
Delia - Kate Bosworth
Dr. Frederic - Ed Harris
Manute - Michael Clarke Duncan
Liebowitz - Ciccolella
Colonel - Ray Winstone
Mariah - Eva Mendes
Wallenquist - Brian Cox
Epilogue: Silent Night
Marv - Mickey Rourke
Cigar smoking chick - Lara Flynn Boyle