Board Thread:Show-Related Questions and Answers/@comment-26569765-20160515144204/@comment-26443838-20160523212944

Hmcooper4 wrote: True, however, any changes to the core 7 characters (Lana, JMo, Ginny, Josh, Robert, Jared, and Colin) would probably only occur if the actor does not want to continue. Emilie and Bex, as much as I enjoy their characters, are in the category of characters that could be considered expendable, though neither would likely would not be killed off.

I would guess if the show starts to show signs of going past 7 seasons, there may be some changes to be made in the core group. but at that point, it would be more likely that characters would be sent to the land of the forgotten (where Ruby, Whale, Tink, Aurora, and the rest currently reside) to make room for new core characters and new stories. Colin wasn't originally a core character. He never was in season 1. He was just added for season 2 to the rest for now before he might be removed. Just like how others like Jamie Dornan, Raphael Sbarge, Meghan Ory, Sean Maguire, Rebecca Mader, Michael Socha, Emilie de Ravin, and Michael Raymond-James were before they were removed from core or killed off.

The only original core from the beginning we've seen from 1 to 5 were Lana, JMo, Ginny, Josh, Robert, and Jared.

Some members of the original core can be expendable and removed/replaced or killed off. Just like they just did in Agents of Shieled when they removed the actor of Grant Ward/Hive in season 3 along with a new core characters (like, Boobie, Hunter and Lincoln).