Axis Powers:

N. Italy (Feliciano Vargas):
Germany (Ludwig):
Japan (Kiku Honda):

Allied Forces:

America (Alfred F. Jones):
England (Arthur Kirkland):
China (Wang Yao):
Russia (Ivan Braginski):
France (Francis Bonnefoy):

Bad Friend Trio:

Prussia (Gilbert Weillschmidt):
Spain (Antonio Fernandez Carriedo):
France (Francis Bonnefoy):

Scandinavian countries:

Finland (Tino Vainamoinen):
Sweden (Berwald Oxenstierna):
Denmark:
Norway:
Iceland:

Baltic Countries:

Lithuania (Toris Lorinaitis):
Estonia (Eduard Von Bock):
Latvia (Raivis Galante):

Asia:

China (Wang Yao):
Japan (Kiku Honda):
Korea (Im Yong Soo):
Hong Kong:
Taiwan
Thailand

German Countries

Prussia (Gilbert Weillschmidt):
Germany (Ludwig):
Switzerland (Vash Zwingli):
Liechtenstein :
Austria (Roderich Edelstein):
Hungary (Elizaveta Hedervary):

English Countries

England (Arthur Kirkland):
America (Alfred F. Jones):
Canada (Matthew Williams):
Sealand (Peter Kirkland):

More Contries (If I forgot a group, tell me please ):

S. Italy (Lovino Vargas):
Poland (Feliks Lukasiewicz):
Turkey (Sadiq Annan):
Belarus (Natasha Alfroskaya):
Greece
Rome :
Cuba (Juan Fidel) :
General Winter :

Chibitalia:

N. Italy (Young Feliciano Vargas):
Holy Roman Empire:

Other:

Britannia Angel (Drunk England):
Shinatty-chan :
Panda :
Gilbert's Chick :
Tony the Alien :
Mochi America :

Non-Hetalia Countries: (I think)

Hawaii (Olina Ahe):
Jamaica (Nicole Resaunna) :
Dominican Republic (Benito Lorenzo) :

Fan Countries: ( )

Orange-Lide: Orange X D
The Catastrophe Islands:
Fentil