Hell's Angel

Hell's Angel is the 18th episode of Season 11. It aired on April 6th, 2016.

Summary
THE EPIC BATTLE FOR POWER BEGINS – Lucifer (Misha Collins) takes a trip home and tries to assert himself into Heaven. Crowley (Mark Sheppard) tells Sam (Jared Padalecki) and Dean (Jensen Ackles) he has a way to take down Amara (guest star Emily Swallow).

Main Cast

 * Jared Padalecki as Sam Winchester
 * Jensen Ackles as Dean Winchester
 * Misha Collins as Lucifer and Castiel
 * Mark Sheppard as Crowley

Recurring Cast

 * Emily Swallow as Amara
 * Mark Pellegrino as Lucifer
 * Ruth Connell as Rowena

Guest Cast

 * Graeme Duffy as Jofiel

Featured Supernatural Beings

 * The Darkness
 * Archangel (Lucifer)
 * Angels
 * Demons
 * Crossroad Demon (Crowley)
 * Witch (Rowena)

Continuity

 * Dean and Sam discover Rowena's death at the hands of Lucifer, and her subsequent revival. Rowena was killed by Lucifer at the end of The Devil in the Details.
 * In this episode, Lucifer enters Heaven for the first time in the series.
 * Castiel makes a brief return in this episode. He was last seen in The Vessel.
 * This episode features the first time an Angel Suppressing Sigil was used on an archangel, however, Lucifer was able to remove the sigils after briefly being affected by it, showing immunity.
 * This episode features first successful use of the exorcism since Mother's Little Helper. It is also the first time the exorcism was used on a demon but not to banished it back to Hell, but (ironically) to save the demon. The Winchesters use it to expel Crowley when he was losing in a mental brawl when tried to expel Lucifer form Castiel's consciousness.

Errors

 * Amara called Lucifer the "first son", it was previously established that Michael is the first archangel God created.

Trivia

 * Antagonists: The Darkness and Lucifer
 * Rowena is shown to be alive, that a spell she puts inside herself long ago revived her after Lucifer broke her neck. She has found and been healing Amara from the mass smiting.
 * Amara/The Darkness somehow realizes Rowena is Crowley's mother.
 * This episode features a third Hand of God, known as the "Horn of Joshua". Joshua is the central figure in the Hebrew Bibile's book of Joshua. He became the leader of the Israelite tribes after the death of Moses, a figure who possessed another Hand of God.
 * Dean calls Sam "Dr. Phil". This is the third time Dr. Phil has been mentioned in the series.

Quotes

 * Jofiel: So perfect. Castiel, Heaven's most wanted possessed by Heaven's most hated.
 * Amara: What they call destruction, I call renovation. My blueprints, not God's.