which person was in the last casket summoned by kabuto infront of madara while asling him about joining akatsuki?

well I have a quite unique opinion It could be obito---kakashi's former teammate.the ability of kakashi's bangekyoshiarinkan is devouring--contorting space u know each of itachi's eye has complementary ability--amaterasu and tsukiyomi then obito's eyes are also this way kakashi's left eye is for attacking then obito's remaining right eye(madara stole it from his corpse)'s bangekyo mode is for traveling through space--now it's madara's ability and as you can see under madara's mask we can only see his right eye Am I reasonable?

so anybody notice (madara is a beast) he would not just let anybody in the crew like are you serious.Anyways my answers are

1.madaras bro
and sorry for thr intruption but its a guy (my next answer)if anyone remember named ridoku which is the first person that had the rinnegan plus he was the host of 10 tails

so number 2 is ridoku

Hmmm...I have a few silly guesses. Totally irrational guesses, but I can't help but say hem.
1. Madara's brother
2. The first hokage
or 3. Madara himself

Out of all three, I know the third one is a little out there xD but I can't help but think (not entirely sure) that MAYBE the person beneath tobi's mask is just USING the name Madara as a cover up...and when KAbuto revealed The true Madara's corpse within the casket, Kabuto was therefore saying that he knew tobi's secret. Total Black mail ^^

BUTT, these are all crazy guesses. Who knows what Kishimoto's gonna put inside there? xD

maybe...
1. 1st hokage, but it's imposible, cause he'd called by orochi
2. madara's brother
3. uchiha obito
4. madara uchiha
and last
5. 4th hokage.

i have a couple people in mind
1. izuna
2. sage of six paths
3. sages eldest son
4. sages youngest son
5. minato
6. or madara

i think tobi is the first hokage but who knows its up to kishi to choose who tobi is hahahahaha

Madara Uchiha