Ty Olsson has signed on for a key Supernatural Season 8 role.

The former Battlestar Galactica actor, who actually appeared on a Supernatural Season 2 episode as a vampire named Eli, will portray Benny this fall, another blood sucker who helps Dean escape from Purgatory.

Look for the character to debut on the October 3 premiere and cause some problems for Dean, who owes a huge debt to the undead creature.

What else can fans expect from upcoming episodes? We chatted up the Supernatural cast and crew at Comic-Con this weekend and asked that exact question.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.