Killed by Gadreel

Beings killed by Gadreel.

High-Tier Angels

 * Gadreel - Using a rock from the floor of Heaven's dungeon and the Energy Focusing Sigil, Gadreel sacrificed himself to blow up Heaven's dungeon and allow Castiel to escape.

Regular Angels

 * Abner - Throat slit with an angel blade on Metatron's orders.
 * Hannah's friends - Killed on Metatron's orders.
 * Malachi - Killed on Metatron's orders.
 * Thaddeus - Stabbed with an angel blade on Metatron's orders and to get revenge.

Regular Demons

 * Jason and two of Abaddon's other demons - Stunned with a flash of white light and then killed with the demon-killing knife during the Battle of Eugene, Oregon.

Hunters

 * Ian - Smote when collecting ingredients for the Horn of Gabriel.

Prophets

 * Kevin Tran - Smote after being ordered by Metatron to assassinate Kevin.

Vessels

 * Cory - Pop singer used by Thaddeus as his vessel and killed with Thaddeus.
 * Alexander Sarver - Vessel of Abner, killed when Gadreel killed Abner.
 * Hannah's friends vessels - Killed when Gadreel killed the angels possessing them.
 * Gadreel's vessel - Killed when Gadreel killed himself.
 * Malachi's vessel - Killed when Gadreel killed Malachi.