Pamela Barnes

Pamela Barnes is a Psychic who helped Dean and Sam discover what pulled Dean out of Hell in "Lazarus Rising". While doing this, the angel Castiel warned her not to go any further. Pamela ignored his warnings and kept going anyway, and as a result she lost her sight. She has displayed a strong sexual attraction to Dean Winchester.

Pamela returned in "Heaven and Hell" to help discover the identity of Anna Milton's father. After losing her eyes, Pamela had them replaced with plastic balls and wears sunglasses to cover her blindness. Using hypnosis, she helped Anna recover her memories of her past life as a fallen angel.

Pamela returned again at the request of the Winchester brothers in "Death Takes a Holiday". In order to protect one of the seals from being broken, they needed to enter the astral plain, for which they needed the help of a psychic. When the demons discover their plans, they send someone to kill Pamela. The demons wound her mortally, but not before she is able to snap Sam out of his trance so he can banish the demon. With her final breath, she mentions to Sam that she knows what he's doing.

Season 5 features Pamela's return in Dark Side of the Moon, where she is one of the Winchesters' old friends they visit while in Heaven. She reveals that she is very happy in Heaven and that despite the circumstances of her death, she still cares for the Winchester brothers as a dear friend. Flirtatious as ever, Pamela meets the brothers in a Heavenly representation of the Roadhouse after Ash, also now in Heaven, helps them escape from Zachariah. Pamela tells Dean that saying yes to Michael really is not the horrible choice he believes it will be, as regardless of what happens in the aftermath, any people killed will come to Heaven, where they will be happy and at peace as she is now. Ash and she help the Winchesters find a way to the edge of Heaven's central garden, bidding them farewell and commenting that they would one day meet again.

Season 4

 * "Lazarus Rising"
 * "Heaven and Hell"
 * "Death Takes a Holiday"

Season 5

 * "Dark Side of the Moon"