Supernatural creator Eric Kripke has revealed that Supernatural's sixth season will have a new direction.

The former showrunner admitted that the angels and demons had been "rightfully exhausted" and claimed that the paranormal drama will be reinvented with innovative story arcs.

                                         

He teased: "Castiel will be there. Crowley will be there. The beloved characters will be threading into the story. But the great undiscovered country of Supernatural is kind of right in front of our face: creatures and monsters.

"We have had so many creature episodes but we haven't actually explained where they came from - [similar] to the way we have explored angels and demons.

"How do they feel about the situations they are in? Are they from here? Where did the first ones come from? How did werewolves and vampires and shape-shifters all begin anyway?"

Supernatural, which stars Jared Padalecki and Jensen Ackles, returns to The CW in September.