[mare911]

I gathered some info on available companions:

1. Sirius Dark [+3 attack/+1 morale of undead]
   
2. Lucius [+100% attack and defense of dryads, feries, demonesses]
   
3. Almaran [double crit chance against demons and undead]
   
4. Kulukhan [+1 initiative and speed of orcs]
   
5. Captain Kidd [+300 leadership/+1 speed and morale of pirates,sea dogs, marauders, robbers, devilfish]
   
6. Torburn [+20% crit chance for archers]
   
7. Illiar [+4 intellect/mana restoration after battle]
   
8. Artang [+3 defense and +1 initiative and speed of humans/summons orc stack equal 1/2 hero's leadership]
   
9. Hagrid [+50% health and 10% resistance of thorns and ents/summons plant stack]
   
10. Amber [+1 initiative and +50% dmg of assassins/+10% crit chance/attacks enemy during battle]
    
11. Torre [+50% lightning damage/+5 defense of mages/summons magic sword for 9 rounds]

I hope I didnt missed someone