Edgar

Edgar is a Leviathan in league with another Leviathan, Dr. Gaines. He has orders from Dick Roman to rein in those who are indiscriminately feasting on people.

Season 7
Edgar came to meet the Leviathan possessing the little girl to talk about the mission assigned to them by an unknown boss. He tells her the Boss is not pleased about an incident involving two other Leviathans feeding carelessly and drawing human attention. He warns the girl to get the other Leviathans in the area in line since the boss "doesn't like bad news".

After the Leviathan in the little girl has taken the form of Dr. Gaines, Edgar brings the two possessed high school students to him. He also tells Dr. Gaines that the "boss" gave him some business to take care of, which turns out to be taking out Bobby, Sam, and Dean. He torches Bobby's house and fights Sam and Dean in the lot until Dean drops a car on him. He is later seen reabsorbing the black liquid that had oozed from him when he was crushed.

.After surviving the battle between Sam and Dean Edgar is currently hiding out at a local restaurant when he receives a call from Chet telling him that found the possible location of were Sam and Dean from a credit card purchase somewhere in Montana. Edgar simple tells Chet to follow up on this possible lead of where Sam and Dean are located. Edgar later receives another call from Chet confirming the location of Sam and Dean and that he plans to pursue them.

Edgar later appeared in "How To Win Friends And Influence Monsters" While Dean sleeps off the effects of the turducken goo, Sam and Bobby stake out the Biggerson's Restaurant's warehouse. A car pulls up and out steps Edgar, getting a hooded figure out of the trunk, and forcing him inside the warehouse.

The hooded figure is the Biggerson's waiter Brandon, and he has developed the same hyper-aggressive behavior as Gerald Browder. In the warehouse, Edgar greets the Leviathan Dr Gaines and tells him that he needs to be more careful because the adverse reactions that some people, like Gerald and Brandon, have to his formula are drawing attention. Dr Gaines seems optimistic about his experiments, even his failures, but Edgar warns him that Dick Roman is coming and that he needs to burn his "mistakes." Later, he and the other Leviathans get sprayed with Borax by the Winchester brothers who attempt to rescue Bobby from Dick Roman.

Edgar is seen in "Reading Is Fundamental" planning the construction of Dick Roman's human-slaughterhouses (as well as questioning Dick's choice of name) when he receives new orders to look for the newly-chosen prophet, Kevin. He shapeshifts into a detective to find Kevin. While at Kevin's home he is speaking with Kevin's mother when Kevin suddenly appears in the company of two angels. Edgar swiftly kills both angels while making witty lines about how Leviathan beats Angel, then shifts back to his "normal" form and smiles malevolently at Kevin and his mother who cower in terror.

Season 7

 * Hello, Cruel World
 * The Girl Next Door
 * How To Win Friends And Influence Monsters
 * Reading Is Fundamental

Trivia

 * The person he has taken the shape of used to work in demolition.
 * He is the first person, besides the archangels, to kill an angel without using an Angel Blade.