The show features two main characters, Jared Padalecki as Sam Winchester and Jensen Ackles as Dean Winchester, brothers who travel across the country in a black 1967 Chevrolet Impala to hunt demons, supernatural creatures, and other paranormal entities, many of them based on folklore, myths, and American urban legends.
Supernatural has featured many other recurring guests that take part in story arcs that span a portion of a season.
Occasionally, the recurring guest storylines will span multiple seasons.
He tells Sam that he would need the blood of his father (that needn't come from the "father of your blood"), prompting Sam to try to kill Bobby before he is subdued, Dean and Death managing to recover Sam's soul.
Balthazar transports Sam and Dean to an alternate universe, in "The French Mistake", to evade the angelic hit man Virgil and gives them a key which he claims opens where the weapons he stole from Heaven are stored.
Believed dead, this was merely a cover as he left Heaven, taking a number of the weapons with him.
Since faking his own death, he has been on Earth enjoying a rather hedonistic lifestyle.
Balthazar claims he had saved the Titanic simply because he detested the movie and subsequent eponymous song.
However, upon confrontation with Fate, Atropos reveals she knows Balthazar is working for Castiel; the saving of the Titanic was to provide additional souls to fund their side in the civil war.
During a conflict with Raphael and his henchmen, Balthazar destroys the archangel's vessel with Lot's Salt.