Van Louin, Martha: The matriarch of a powerful San Francisco family. She killed Elias Lundy and he came back to haunt her, killing the men in her family. As she was the object of Lundy’s obsession when she died his ghost was vanquished.

Martha Van Louin

Van Louin, Matthew: A baby the Charmed One’s protected from a vengeful ghost, intent on destroying all men in the Van Louin family.

Matthew Van Louin

Vanishing Spell: This spell is capable of cloaking an objectionable object or feature. Simply concentrate on what you wish to hide while reciting the spell.

Let the object of objection,
Become but a dream,
As I cause the seen,
To be unseen

Vanquish An Evil Spirit, Spell To: Prue and Piper Halliwell used this to vanquish the spirit of Jackson Ward. The spell could only be recited on the astral plane, by the spirit of a Witch. To get to the astral plane a Witch had to literally die. The words to the spell are:

Ashes to ashes,
Spirit to spirit,
Take his soul,
Banish this evil

Prue Halliwell used a death potion to die and recite the spell, but Andy Trudeau revived her.

Vinceres: A timeless and unstoppable demon assassin. He displayed many abilities: incredible strength, invulnerability, immortality, the ability to kill with a touch (similar to the Darklighter’s death touch) and an immunity to both Witches powers and spells; for example he showed that he was able to move through the freezing power, yet strangely was still affected by Prue Halliwell’s boosted telekinesis and astral projection. It is possible that Prue was only able to affect Vinceres with her powers because of her empathic ‘power boost’. Witches spells could affect him if he allowed it, as was the case with Prue’s empath spell.
Father Thomas cursed Vinceres with his empathic gift, so that he would be crippled by human emotions and be unable to kill. Vinceres, with the help of Belthazor, tricked Prue Halliwell into lifting this curse from him, ironically providing her with the enhanced power she needed to vanquish him.
Vinceres appeared human, and looked like a vagrant. He had existed through many different ages, yet had always looked the same. It is not clear whether Vinceres human face was his true form, or a mask to hide his demonic traits.

Vinceres    Vinceres in the BOS

Vornak: Second in command of The Brotherhood Of The Thorn and a higher level demon similar to Belthazor. Vornak displayed the ability to shimmer and glamour, but presumably was also capable of casting energy balls. Vornak’s appearance was that of an older, human, male.
The Charmed Ones vanquished him with the Belthazor potion when he attempted to impersonate Cole Turner and kill them.

Vornak    Vornak and Cole