Characters of Lord of the Rings (spoilers)

FRODO BAGGINS

Bearer of the One Ring & Deputy Mayor of Michel Delving

Race: Hobbit (from The Shire)
Weapon: Sting and Barrow-blades

ARAGORN II ELESSAR

Chieftain of the Dúnedain, Heir of Isildur, King of all the Dúnedain, King of the West & High King of Gondor and Arnor

Race: Men (Dúnedain of the North)
Weapon: Andúril, other sword, elven dagger, bow

Spouse: Arwen Undómiel

LEGOLAS GREENLEAF

Prince of Mirkwood

Race: Elf (Sindarin, from Mirkwood)
Weapon: special Bow gifted by Galadriel, two long curved white knives, bow of Mirkwood

GANDALF

The White Wizard

Race: Maiar (Istari)
Weapons: Glamdring, Narya, Wizard Staff

SAMWISE "SAM" GAMGEE

Mayor of The Shire

Race: Hobbit (from The Shire)
Weapons: Barrow blade, also wielded Sting in Cirith Ungol

GIMLI

Lord of the Glittering Caves

Race: Dwarf (House of Durin)
Weapon: Battle Axes

PEREGRIN "PIPPIN" TOOK

Thain of the Shire, Guard of the Citadel (until Fourth Age by Denethor II) & Knight of Gondor (from Fourth Age by Aragorn II

Race: Hobbit (from The Shire)
Weapon: Barrow-blade

MERIADOC "MERRY" BRANDYBUCK

Master of Buckland & Esquire of Rohan

Race: Hobbit (from The Shire)
Weapon: Barrow-blade

BOROMIR

Captain of the White Tower, Captain-General, High Warden of the White Tower & Steward-prince of Gondo

Race: Men (from Gondor)
Weapon: Sword, Shield, dagger

Killed by Uruk-hais

SAURON
Dark Lord of Mordor & Creator of the Rings of Power

Race: Maiar (of Aulë)
Weapon: One Ring, Mace, and sword

The destruction of the Ring has destroyed Sauron's chance to ever return to a bodily form. He wasn't killed, but can only live in spirit form without his powers.

SARUMAN
Lord of Isengard & Head of the White Council

Race: Maiar (Istar)
Weapon: Wizard Staff, Dagger

As Sauron, Saruman can't either return to his bodily form. He can't die, but will only live in spirit form.

WITCH-KING OF ANGMAR
King of Angmar, Lord of the Nazgûl & Lord of Minas Morgul

Race: Men (Nazgûl)
Weapon: Sword, Morgul-knife, Flail, Sorcery

Slained by Éowyn.

GOLLUM / SMÉAGOL
Race: Hobbit (Stoors)

FARAMIR
Captain of the Rangers of Ithilien, Captain of the White Tower, Steward to the King of Gondor, Lord of Emyn Arnen & Prince of Ithilien

Race: Men
Weapon: Sword and bow

Spouse: Eowyn

DENETHOR II
The twenty-sixth and last Ruling Steward of Gondor

Race: Men

Spouse: Finduilas of Dol Amroth

THÉODEN

King of Rohan, Lord of the Mark, Lord of the Rohirrim & Lord of the House of Eorl

Race: Men
Weapon: Herugrim

ÉOWYN
Shieldmaiden and Princess of Rohan, Lady of Ithilien & Lady of Emyn

Race: Men
Weapon: Sword

Spouse: Faramir

ÉOMER
Third Marshal of the Riddermark

Race: Men
Weapon: Guthwine, spear

Spouse: Lothiriel

ELROND

Lord of Rivendell

Weapon: Formerly Hadhafang

Spouse: Celebrian

ARWEN UNDOMIÉL
Queen of the Reunited Kingdom (Arnor and Gondor), Lady of Rivendell

Weapon: Headhafang

Spouse: Aragorn II Elessar

GALADRIEL
Lady of Lórien, Lady of the Galadhrim, Lady of the Wood, Lady of Light & Queen of Stars

Spouse: Celeborn

CELEBORN
Lord of Lothlórien, Lord of East Lórien, formerly Lord of Eregion & Prince of Doriath

Spouse: Galadriel

HALDIR
Marchwarden of Lórien

Weapon: Bow and sword

BILBO BAGGINS
Race: Hobbit (from the Shire)