@Waboshi:
Define "f-ed up" and "messed up". As in crazy bastards? As in serial killers? As in traumatized school girls?
I remember Kaido(u) himself mostly, and I remember his "big shot" people were 3 guys and 1 girl.
1. Kaido(u) had more than a single mask with many faces on it, that, rotated around and reflect his current mood. (Luffy was matched up with Kaido(u) to fight, of course). Kaido(u) was also pretty quiet; a man of few words. (I also think Kaido(u)'s mask was connected to his Devil Fruit, which was a Paramecia type; not 100% sure).
2. The only "big shot" girl was Kaido(u)'s assistant; she, in a way, was also his voice–since he didn't seem to speak much. (She also has a Devil Fruit). Personality wise, she was kinda-sorta like Nico Robin and Monet, and in fact, is "matched up" against Nami AND Nico Robin to fight.
3. The right-hand man of Kaido(u) was some sort of crazed serial killer. And, of course, he is "matched up" against Zoro. (I can't seem to remember if he had a Devil Fruit or not--but like the others, he could use Haki well).
4. The last guy (or guys) is the weirdest. Was a pair of conjoined twins with polar opposite personalities--one was very happy, and the other very sad--each having a Devil Fruit; a strong one, of course. Usopp and Sanji were matched up against them.
Chopper, Franky, and Brook took on Kaido(u) crew fodder for the most part in my dream. (I think Jinbe was a part of the crew too, but, he got defeated by Kaido(u) while trying to "defend" Luffy from fighting him).