'Big Sky' Cast: These 8 Actors Are Returning for Season Two, Including One Huge Surprise!

The second season of the hit ABC series Big Sky premieres TONIGHT (September 30) and only some of the cast from season one will be returning.

As fans of the show know, there was a big change in actors from the first half of season one to the second half. The show followed different mysteries in each half of the season with only a select group of cast members featured in both parts.

Here’s a season two synopsis: “When private detectives Cassie Dewell and Jenny Hoyt reunite to investigate a car wreck outside of Helena, Montana, they soon discover that the case may not be as straightforward as it seems. As they unravel the mystery of the accident, their worlds will collide with a band of unsuspecting teens, a flirtatious face from Jenny’s past, and a vicious outsider hellbent on finding answers.”

You’re going to be very surprised when you find out about one of the actors who is returning and this person’s return will introduce a cool new twist!

Click through the slideshow to find out who is returning…