Roles

Independent Roles:
Smaug: RamDieMan [Great Dragon]

Durin's Bane: NoWayItsAtomic [Balrog of Moria]

Saruman: Open [Maiar]

Gandalf: Open [Maiar]

Radagast: Open [Maiar]

Pallando: Open [Maiar]

Radagast: Open [Maiar]

Shelob: xXTwinkiePieXx [Great Spider of Nan Ungol]

Human Leaders:
Shire:

Ferumbras Took: Open [Thain of the Shire]

Rangers of the North:

Arrasuil: [Leader of the Rangers]

Dunland:

Freca: Open [Leader of the Adorn]

Saradoc: Open [Warlord of Enedwaith]*

Rohan:

Helm Hammerhand: Open [King of Rohan]

Gondor:

Beren: Lord_Ageos [Steward of Gondor]

The Easterlings

Akbar: Open [Khan of Rhudel]

Kublai: Open [Loke-khan of Khand]*

Northeners

Ulf: Open [Warlord of Rhudaur]*

Grendel: Open [Chieftain of Lossoth]

Orc Leaders
Gundabad

Azog: Open [King of Moria] [Warlord of Gundabad]

The Great Goblin: Open [King of Goblin Town] 

Golfimbul: Open [Warchief of Mount Gram & Angmar]

Isengard

Shagdug: Open [Warchief of the Fighting Uruk-hai]

Lurtz: Open [Leader of Uruk Scouts]*

Mordor

Gulthaak: Open [Rebels from Nan Ungol]

Ûr-bashag: AgsterDark [Warlord of United Mordor]*

Dante: Open [King of Nurn]*  ANNEXED 

Yagthuk: Open [Warchief of Gorgoroth]  ANNEXED 

Kasakurv: Open [Rebels of the Vale]

Nazgul

Khamul: Open [Lord of Dol Guldur]

Witch King: Open [Lord of Angmar]

Elven Leaders:
Eastern Elves

Eol: Open [Queen of the Avari Elves]

Bladorthin [King of Dorwinion]

Wood-elves

Celebron: Open [King of the Galadhrim]

Thranduil: Open [King of Woodland Realm]

Noldor

Celegorm: Iliasblond [Viceroy of the High-Elves]

Elrond: Open [Lord of Rivendell]

Dwarven Leaders:
Durin's Folk

Thrain: _Devil [King under the Mountain]

Blue Mountains

Dis: Open [Queen of Blue Mountains]