Necron was a Skeletal Being that roamed the seas to seek victims to feed on. At some point, he appeared in the lair of the Sea Hag to feed on her. However, the hag convinced him that she could deliver a Mermaid to grant him true immortality if he spared her life. Necron accepted her deal, but grew impatient when she failed to deliver the mermaid she promised. When the Charmed Ones vanquished the Sea Hag, Necron kidnapped Piper Halliwell, but was later vanquished with the Power of Three.