Telepathy

Telepathy is the ability to read another being's thoughts, or even sometimes emotions/mood when used by Archangels or War.

Characters with this ability

 * Archangels - Archangels can read a person's mind, sense their emotions/mood, all of which are incredibly simple for them.
 * Angels - Can read each others minds, and lower angels, however only higher Angels (Seraphs) can also read humans minds
 * Seraphim
 * God
 * Alphas - Able to read all the childrens minds, meaning they know all they know, they can do this over great distance.
 * Djinn - Read there victims minds to learn there greatest fantasy.
 * Eve - Able to read the minds of all her children, so she knew all they knew, over a unlimited distance, even across dimensons. She could also read humans minds
 * Four Horsemen of the Apocalypse
 * Leshi
 * Mary Worthington - As her spirit was traped in a mirror (which the lore states can see your secrets) she could tell if the person was (or atleast thought they were) responsible for a deathOsiris - Read his victims minds to learn there guilt.
 * Siren - Read there victims minds, so they learn what form to pose as to attract them.
 * Whore of Babylon.

Lucifer Rising
Zachariah used this ability to look into Dean's mind and advised him against hitting him with a statue.

My Bloody Valentine
The Cupid, or Cherub, requested Castiel to look into his mind and see if he was lying. After Castiel had seen into his mind, he was convinced that the Cupid was not involved in anything other doing his usual work, which was joining couples.

Sympathy For The Devil
Lucifer employed telepathy against Nick, seeing into his mind and planting hallucinations of his dead wife and child until he agreed to become his vessel.