Supernatural Season 10 Spoilers: Cain Returning

Much of Season 10 of Supernatural has focused on Dean Winchester dealing with the Mark of Cain. He was a demon for the first three episodes of the season because of it, and he's still feeling the effects even though he has since been cured and turned back into a human. But perhaps the one man who could help him get rid of the mark once and for all is returning to the series.

Tim Omundson, who plays Cain, will return at some point later this season. The actor announced the news on Twitter. "Why am I going to Vancouver?" he wrote. "A) PSYCH reunion B) Bringing Cain back to #SUPERNATURAL C) Extradition. Hint: Not A or C."

Cain first appeared on the series in Season 9 when Dean and Crowley tracked him down in order to find the First Blade, the only weapon capable of killing Abaddon. They succeeded, but Dean had to bear the Mark of Cain in order to wield the blade, and that decision has been affecting him ever since.

When and how do you think Cain would return? Let us know in the comments section.