Iruka Sensei, the first ninja you obtain.
Attributes
Type - Taijutsu/Great
Formation - Vanguard
Force - (Growth Rate - 1.1)
Agility - (Growth Rate - 0.9)
Power - (Growth Rate - 0.9)
Health - (Growth Rate - 1.3)
Abillities
Passive
Force Talent - Increase Force by certain percentage.
Skill
Wind Blast - Attack enemy vanguard, growing rate 70%, increase caster's block rate by 25% for 3 rounds.
Source
As the game progresses, he will join you.