So I just noticed that in the panel where Vito describes Germa 66 there is a guy labeled with 1, another with 2 and maybe a woman with no number. 2 them look to have parted hair and the one labeled with the number 1 looks to have a similar hood/cape that Sanji's presumed brother has at the end of the chapter.
I'm pretty sure they are the same person, Ichiji.
The big guy on the back is the 'Papa'?