Haseo Nakanishi is 167 cm.
Manabu Nakanishi is 6' 1".
Tetsuo Nakanishi is 173 cm.
Haseo's name is explained in one of the emails you receive in the second game....i cant remember what it said though. to reiterate, Haseo does not mean "the terror of death"
Rei Nakanishi's birth name is Reiz Nakanishi.
At the very beginning of the game, Haseo's character was killed by Asta and IYOTEN.
Haseo is the same in english.In the game and anime his name is supposedly a reference to Matsuo Basho a famous japanese edo period poet.
Kazuo Nakanishi was born in 1922.
Kazuo Nakanishi died in 2003.
Hidetoshi Nakanishi was born in 1958.
Koji Nakanishi was born in 1925.
Chieko Nakanishi was born in 1966.
Shigeru Nakanishi was born in 1946.