Killed by Lucifer

Beings killed by Lucifer.

Archangels

 * Gabriel - Stabbed with Gabriel's own archangel blade.

Seraphim

 * Castiel - Stabbed through the back with an angel blade; resurrected by the Cosmic Entity.

Regular Angels

 * Castiel - Exploded at the molecular level in revenge for hitting Michael with holy fire; resurrected by God as a Seraphim.
 * Angel Commander - Exploded at the molecular level.
 * Nithael - Exploded at the molecular level.
 * Four alternate reality angels - Exploded at the molecular level.
 * Jofiel - Exploded at the molecular level.

Regular Demons

 * Around a dozen demons - Sacrificed as part of a ritual to summon Death.
 * Thomas and his friend - Exploded both at the molecular level.
 * Rachel Nave and several other demons - Killed by Lucifer to give Sam revenge for the demons spying on him his whole life under the orders of Azazel.

Hunters

 * Alternate reality hunter - Punched his fist through his body.
 * Bobby Singer - Neck snapped with telekinesis; resurrected by Castiel. Killed again by Dick Roman.

Vessels

 * Archbishop - Burned out through possession.
 * Unnamed family of five - Burned out through possession.
 * Nick - Burned out through possession.
 * Jimmy Novak - Killed when Lucifer exploded Castiel.
 * Gabriel's vessel - Killed when Lucifer killed Gabriel.
 * Vince Vincente - Burned out through possession.
 * Wallace Parker - Burned out through possession.

Witches/Magic Practitioners

 * Rowena MacLeod - Neck snapped; resurrected through a spell; killed again by stomping her head in and then incinerating her body.

Regular Humans

 * A US Secret Service agent - Induced an aneurism.
 * Gordy and Adam - Necks snapped with telekinesis.
 * Priests and nuns of St. Louis, Missouri - Brutally slaughtered.
 * Residents of Carthage, Missouri - Sacrificed as part of a ritual to summon Death.
 * Russel Lemmons - Telekinetically stabbed with a pen.
 * Tommy - Neck snapped with telekinesis.
 * Vince's band mates - Necks snapped with telekinesis.

Deities

 * Baldur - Punched through the chest.
 * Ganesh - Exploded at the molecular level.
 * Isis - Brutally slaughtered.
 * Odin - Brutally slaughtered.
 * Baron Samedi - Brutally slaughtered.
 * Mercury - Telekinetically snapped his neck.