Lady Julia: Twelfth century Lady and true love of The Prince. She was imprisoned by the Evil Enchantress but escaped to reclaim her Prince’s love after the intervention of The Charmed Ones.

Lantern: A magickal lantern given to the Charmed One’s by the Warlock Rex. The lantern’s function was to capture the powers of the Charmed One’s after they cast the Relinquishment Spell. The lantern vanished with Rex and Hannah when they were called back to their master.

Lazarus Demons: Rare, high level, demons capable of resurrecting themselves after every vanquish, unless their remains are buried within the confines of cemetery grounds. A flameball, particle acceleration or even a sword can destroy them, reducing them to ash, though they will quickly reform.
Lazarus demons look like mortals and wield very strong telekinetic abilities as well as the power to teleport, though they are mean spirited and unreliable, even for demons. The longer a Lazarus is away from cemetery grounds the stronger their powers grow.

A Lazarus demon    A Lazarus demon    A Lazarus demon

Levitation: The ability to make objects, or ones self, hover in the air. There are two types of levitation powers. One is the ability of self-levitation. Phoebe Halliwell possesses this power, which allows her to levitate herself into the air, as do Whitelighters.
The second levitation ability is projective levitation. With this ability one is able to levitate other objects and people. The owner of the familiar Shadow possessed this power, before he betrayed her and stole it.

Leza: Once possessor of one half of the Amulet Of Protection, Leza was a Witch that was killed by the demon Reynor.

A Libris demonLibris Demons: A breed of demons that are dedicated to ensuring that no mortal ever proves that evil exists. They do this by killing anyone that finds this proof.
Libris demons appear as aged men and have a gray complexion. These demons possess the ability to create teleportation portals and to create scythes from nothing. Their preferred method of killing is to use their scythes to decapitate their victims.
To vanquish a Libris demon one must say this spell:

Demon hide your evil face,
Libris die and leave no trace

A Life Essence possesses Piper HalliwellLife Essences: Similar to a human soul but made in an alchemist’s mixing lab, a well made life essence can possess any human body, but cant survive long outside of a host or an essence bearer. If a life essence stays within a host’s body for more than short periods of time, for example a day, then it proves toxic to the bodies pre-existing soul. The host's soul then dies, leaving the essence in possession of the body.
There are two ways to get a life essence out of a body. One if by killing the host body, forcibly removing it, the second is by using the dispossessing spell. Alchemists may know another way to remove a life essence from a host.
The dispossessing spell both removes a life essence from a host and vanquishes it:

Host’s soul reject the poison essence,
Let loves light end this cruel possession

Beau LightfeatherLightfeather, Beau: Resident of the Ghost Town and half Native American, Beau was gifted with a power of premonition similar to Phoebe Halliwell’s; but whereas Phoebe’s powers are psychometric, triggering when she touches a person or object, Beau’s premonitions occur to him in dreams. Beau had inherited both his gift, and knowledge of the supernatural, from his Grandfather.
Beau’s murder was the act of evil that triggered the Ghost Town time loop but when the townspeople rallied to save him, with the aid of Prue Halliwell and Cole Turner, the curse was ended.
When the Ghost Town was liberated from a time loop Beau and his sister were freed to live out their lives in a parallel plane.

Lightfeather, Isabel: Sister to Beau Lightfeather. Though there is a strong line of magick in the Lightfeather family Isabel displayed no magickal abilities, but showed a good knowledge of supernatural matters.
Isabel was a resident of the Ghost Town that was cursed into a time loop, but was freed with the help of Prue Halliwell and Cole Turner, and is now living out her life in a parallel dimension.

Lightning Bolts: Generation of lightning bolts from the palm of the hand. Zotars wield this dangerous ability, which is even capable of harming a demon as strong as Belthazor.

Lightning Trap: A magickal trap that Prue Halliwell created to ensnare demons. The trap consisted of four siderite crystals Prue had cast a spell on to create a power grid, arranged in a square, with the Book Of Shadows as bait. When a demon stepped within bounds of the trap a grid of lightning bolts struck them, incapacitating them. The lightning bolts only stopped striking when a crystal was removed, or the being in the trap became unconscious.

Belthazor is caught in the trap

An Ling and the sisters in LimboLimbo: All souls must pass through this mystical region between life and death on their way to reincarnation. Metaphysical and magickal laws are amplified in Limbo; time has no meaning, stopping wounds from advancing, and magickal abilities are stronger.
Zen Masters are able to journey to Limbo by means of portals they create in surfaces of water. Similarly they can use water as a scrying glass to look on the mortal realm. Though Limbo houses no obvious water sources the clouds that surround it are full of water, making return to the mortal plane easy for one who knows how.
Travel to Limbo holds many dangers; if one becomes trapped there their soul will never be reborn, remaining in Limbo forever. Similarly a soul whose time has not yet come risks being dragged through the portal to reincarnation.
Extremely malleable, the environment of Limbo will change to reflect the demeanor of its dominant occupant.

Litvack: A level two demon that possesses many powers. Litvack uses a version of telepathy that allows him to read minds, communicate telepathically, and sense residual psychic “essences”. This allowed Litvack to track and communicate with people simply by tapping into their essence in a location where they had been, and also to sense events that had taken place there.
Litvack also displayed the power to immolate objects with a touch, and was “immune to the parlor tricks of Witches”. This last power meant that he was immune to the freezing ability, but it is unclear whether he was immune to all Witches powers, though this would seem to be the case.

Litvack worked directly for The Source, and was able to commune with him through a ball of supernatural fire. Several lesser demons served Litvack and feared him greatly.

Loman, Erik: An independent reporter who tried to expose The Charmed Ones. He was killed by Grimlocks before he could reveal the sisters secret.

Lords of War, The: The Lords of War are a clan of supernatural warriors whose goal is to start wars. They are reincarnated through the ages, and have started most of the major wars in history. The Lords are fierce but have a code of honor: if disgraced a Lord must then steal his abilities back by killing people and draining their souls for the qualities he needs. Among the things needed are the power of a first-born Witch, the strongest, and a killer instinct. The weapons of the Lords of War are crystal swords. These swords protect them, and make them invulnerable to the weapons of man. In addition the Lords seem to have a mental command over their swords, and are able to call them back once thrown.
The Lord of War Gabrielle tried to kill Prue for her power, but was vanquished when the Charmed Ones used his own sword against him. Lords of War can only be harmed by their own swords, and if separated from them by distance become vulnerable.

The Lost and Found spellLost And Found Spell: Phoebe Halliwell wrote this spell in hopes of finding her wayward love Cole Turner. Though it was never cast for this purpose, the spell was employed by the Halliwells to track Prue’s then demonic ex boyfriend, Tom Peters.

Guiding spirits I ask your charity,
Lend me your focus and clarity,
Lead me to the one I cannot find,
Restore that and my peace of mind

A candle needed to be lit, and a crystal held, while the spell was cast.
This spell was effective in finding Tom, delivering an altered newspaper to the Halliwell’s door to lead them to him, but it had some dangerous side effects. Everything that was lost in the vicinity that the spell was cast became found again; lost socks, lost friends, and even lost souls.
Due to the danger posed by the latter, it was important to reverse the spell when it had outlived it’s usefulness. Saying these words reversed the spell:

I return what I didn’t want to find,
Let it be out of sight,
Out of mind

Phoebe was also able to re-write this spell to reveal an elevator that was magickally cloaked. The re-written spell was:

Show me that path that I cannot find,
To save Tom,
And restore Prue’s peace of mind

LucasLucas: A former mortal whose punishment for being consumed by sin was to become custodian of the box of seven deadly sins after death. His charge was to infect innocents with sin, thereby getting them to destroy themselves, and then delivering their souls to evil.
Lucas possessed the ability to teleport himself and others and the power to destroy his demon couriers at will, as well as a sixth sense for detecting the sin a being was most predisposed to and mental control over sin balls, able to levitate and direct them at will. Lucas was also the only being with the power to remove a sin from a being once they were infected.
Vanquishing Lucas removed all sins from those infected, a feat a prideful Prue Halliwell and her sisters accomplished by infecting Lucas with several sins at once and toppling him into the bottomless pit of everlasting torment.

Luck Spell: A spell crafted by Prue Halliwell to reverse bad luck. Though she was not aware of it at the time the spell had the effect or destroying a Darklighter’s bad luck curse upon a future Whitelighter, Maggie Murphy. Once the spell was cast glowing stars of white light flew from Prue Halliwell’s hands and entered the person whom the spell was being cast upon. To cast the spell Prue said these words:

The luck spell frees Maggie

From this moment on your pain is erased,
Your bad luck as well,
Enjoy your good luck Maggie,
You're free from this hell

Ludlow: Master of The Academy, Ludlow was an arrogant and fearsome, high level, demon loyal to The Source commanding powerful telekinesis; the ability to transmute himself into electricity to travel, seemingly appearing and disappearing like a strike of lightning; and resistance to flame and particle acceleration. When he wished Ludlow could also emit a blast of cold placing a being in frozen stasis.
Despite the protection of The Academy The Charmed Ones were able to breach its walls and vanquish Ludlow with a power of three haiku:

Brutal winter,
Gives way to flowers of spring,
Ludlow is vanquished!

Lundy, Elias: A ghost that haunted the Van Louin family, killing the male offspring. Elias’ ghost was unable to leave the confines of the Van Louin mansion.
The ghost of Elias LundyElias Lundy was the Van Louin's chauffeur and became obsessed with Martha Van Louin. His obsession became so intense that Martha killed him and buried his body on the grounds of the Van Louin estate, making it look like Lundy had disappeared, after he threatened to kill her husband.
Elias Lundy’s ghost was vanquished when Martha Van Louin killed herself, removing the object of his obsession. The only other way to vanquish his spirit was to pour a potion upon his bones. The Charmed One’s attempted this, but Lundy moved his bones to prevent them from vanquishing him.

Lure An Evil Spirit, Potion To: To attract an evil spirit to it’s grave you must mix some of the blood of one of its victims with equal parts mercury and acid and pour it over it’s grave.

Brooke and ChristopherLycanthropy Curse, The: A Sorcerer’s curse designed to keep the lovers Brooke and Christopher apart. As Brooke would not return The Sorcerer’s affections he cursed the two to be transformed into animals: Brooke a wolf, and Christopher an owl. The catch was that they were only transformed into animals for half of each day. Brooke was a wolf by night, and Christopher an owl by day. The curse was only to end when Brooke declared her love for The Sorcerer and bound herself forever to him with a kiss, or when there was a night within a day.
By keeping them apart The Sorcerer hoped to break their love, but the two endured until the curse was broken by an eclipse, and with the help of The Charmed Ones vanquished The Sorcerer.