Animal: Caiman, an alligatoroid crocodile (Caiman)
Special Technique: Elettrico Thunder
what we already know:
– He helped develop the ring boxes, along with two other researchers.
– He does not like the Vongola, and at one point orchestrated attempts to assassinate Tsuna, the 10th generation boss.
– He really is a respected top-class scientist and researcher.
– Reborn calls him a mad scientist!
– Everything to him are just means to an end, things to help him complete his researches.
– Does not care who he hurts as long as his researches are done!