Demonic Wasteland

The Demonic Wasteland is a plane of existence where all vanquished demons and essences reside after dying. While there, they are normally killed by the Beast, who absorbs the dead demons powers. It consists of boulders, sand and fires. The sky is dark red and cloudy.

The Beast
The Beast is a worm-like creature that lives in the wasteland and feeds on the powers of vanquished demons. The only known being to escape the Beast was Cole Turner, who was able to survive in the wasteland due to his human soul. Cole later vanquished the Beast, however, a new Beast now roams the Demonic Wasteland.

Cole Turner
Cole Turner was trapped in the Demonic Wasteland after he was vanquished by the orginal Charmed Ones. However, Phoebe Halliwell could still hear his whispers for help, presumably due to their romantic bond. She went to him in astral form through a spell and was almost immediately attacked by the Beast. She eventually left, but Cole could not move on.

When Cole found out that he could absorb the leftover powers from demons that entered the plane, he started to collect as many as he could and eventually killed the beast. After collecting enough powers, he was able to return to earth.

Conrad Turner
Conrad, similar to his half-brother Cole, was able to survive in the demonic-wasteland for months after being vanquished by Darkness. Prue Halliwell later went to the Demonic Wasteland to see Conrad and find out how to vanquish Gadreel.

Former

 * Cole Turner (escaped)
 * First Beast (vanquished by Cole)
 * Phoebe Halliwell (visited)
 * Conrad Turner (resurrected by Handreel)

Temporary

 * Source of All Evil (vanquished by the beast)
 * The Source's Essence (vanquished by the beast)
 * Leah (vanquished by the beast)
 * Numerous other evil beings and essences (vanquished by the beast)

Current

 * Second Beast