Yellow Empire 

ID 20 320 body fight teachers 
ID 20 321 mental fight teachers 
ID 20 322 melee teachers 
Ranged ID 20 323 teachers 
ID 20 324 Magical Weapons teachers 
ID 20 325 black-magic teacher 
ID 20 326 teachers of the healing 
ID 20 327 teachers of Drachenmacht 

Empire Blue 

ID 20 300 body fight teachers 
ID 20 301 mental fight teachers 
ID 20 302 melee teachers 
Ranged ID 20 303 teachers 
ID 20 304 Magical Weapons teachers 
ID 20 305 black-magic teacher 
ID 20 306 teachers of the healing 
ID 20 307 teachers of Drachenmacht 

Red Empire 

ID 20 340 body fight teachers 
ID 20 341 mental fight teachers 
ID 20 342 melee teachers 
Ranged ID 20 343 teachers 
ID 20 344 Magical Weapons teachers 
ID 20 345 black-magic teacher 
ID 20 346 teachers of the healing 
ID 20 347 teachers of Drachenmacht 

** Update ** 

ID 20 007 Warehouseman 
ID 20 349 Stall Burch 
ID 20 029 Pony 
ID 20 030 horse 
ID 20 010 Dealer 
ID 20 080 Uriel 
Thx to Nerule 

20 086 - Third Gemi 
20 087 - Second Soon 
20 088 - man, with it you can in SD2 
20 089 - Pung-Ho, through him to get out of the second Spider Dungeon 
20090 - A female Surarin without function 
20 091 - OT-Sura 
20 092 - Another Surarin without function 
20 093 - Koe-Pung man who stands before the soul Grotto 
20 094 - A type of "fee" without function 
20 095 - wise man