Amenadiel is the eldest of all God's Angels and serves as a central character in Lucifer. Initially the primary antagonist of Season 1 , he embarked on his own journey of growth and ultimately became one of Lucifer's closest allies. As the eldest in the family, Amenadiel was God's main enforcer and messenger for the majority of his lifetime, as he would be involved in fulfilling his Father's most important orders; these acts ranged from overseeing the banishment of Goddess to Hell , cursing Cain for killing his brother Abel , and traveling to Earth on God's behest in order to send Lucifer Morningstar back to Hell so he could resume his duties as its sovereign , as the latter would often become bored and leave his post.
He was eventually tasked with blessing a woman who was unable to have a child, resulting in the birth of Chloe Decker. By , on one of Amenadiel's trips to Earth to retrieve Lucifer, he lost his necklace and was forced to make a deal with his brother to help retrieve it in exchange for letting him be. Five years later, Amenadiel returned to send him back, only for Lucifer to repeatedly refuse to give up his life in Los Angeles. With Lucifer refusing to go willingly, Amenadiel felt forced to resort to extreme measures: He used Lucifer's therapist Linda Martin to get information on him, starting a sexual relationship with Mazikeen , and even resurrecting Malcolm Graham to kill Lucifer so as to forcibly send Lucifer back, all of which ultimately failed.
After realizing he had gone too far, Amenadiel asked for Lucifer's help in returning Malcolm to Hell. During their hunt for the corrupt cop, Amenadiel was stabbed by a Demon dagger , before Maze used a feather from Lucifer's wings to save him.
He soon discovered that he had lost his powers and believed God was punishing him for what he had done the previous year. After Uriel's eradication and learning that Chloe, Lucifer's LAPD partner, was the child of the woman he blessed, Amenadiel grew furious at their Father for manipulating them all without explanation.
Becoming his own man, he aided their Mother in Her quest to return to Heaven using the Flaming Sword , only to discover that God had entrusted the final piece to him; his necklace. With this revelation, Amenadiel regained his faith in his Father, believing he was His favorite son. He also started a friendship with Dan Espinoza and temporarily regained his powers to slow down time to save Linda after she was seriously hurt by Goddess.
