Calthazar

Calthazar is the slash ship between Castiel and Balthazar from the Supernatural fandom.

The Third Man
Cas heads upstairs, where he finds Balthazar. Balthazar says that it's good to see him. Cas tells him that he grieved him, and Balthazar apologizes since he wanted it to seem real. Cas asks what he's doing, and Balthazar says he's doing whatever he wants. Cas asks if he stole the staff, and Balthazar says he stole a lot of things. Cas says that he knows Balthazar, and needs his help. Balthazar already knows, since he's been hearing all about Cas, and nothing's changed between them so he does want to help. Cas thanks him, and says he needs the weapons. Balthazar says not that, but Cas asks why he took them and ran away. Balthazar says it's because he could, and is following in Cas' footsteps from when he stopped the big plan and gave the angels freedom. Cas says that this is what he does with it, and Balthazar says that Cas gave him the ability to do anything so he's trying everything. Cas says that he needs to beat Raphael, and asks for the weapons again. Balthazar laughs and says that the fighting will never stop, no matter how much Cas believes he can. Better to grab something valuable and fake his own death. Cas says that he's insane, and that Raphael knows he's alive by now. He says that Raphael can try. He also says that even with everything going on, he still happy to see Cas, even with the stick up his ass. Thunder crashes, and Balthazar asks if that was Cas. Cas shakes his head no, and Balthazar takes that as his cue to go. He tells Cas to tells Raphael to bite him, and disappears.

Just as Raphael is about to stab Cas, when Balthazar appears behind him and turns his vessel to salt. Cas gets up, surprised that he came back. Balthazar says that Raphael will have to look for a new vessel, giving Cas a head start on him. Balthazar says till next time, confusing Cas, when Dean lights a ring of Holy Fire around him. Dean won't release him till he takes the mark off Aaron's soul. Balthazar tries to reason with Cas, but he says that Dean has the floor. Balthazar then releases the soul, and demands to be released. Dean's against it, but Cas releases him. Cas says that his debt to Balthazar is now clear, and Balthazar calls it fair and disappears.

The Third Man

 * Cas tells Sam and Dean they need to find Balthazar before Raphael.
 * Cas tells Balthazar that even he knows a literal frog in the throat is a bad joke.

Fandom
FAN FICTION

TUMBLR

WIKIS
 * Castiel/Balthazar on Super-Wiki

Trivia

 * In addition to Castiel's common nickname of "Cas", Balthazar also calls him Cassie.