By Chris Post

Venturing into potential spoiler territory, Z Nation star Kellita Smith revealed a guest star for the upcoming season of the Syfy show.

Posting on her twitter account on May 27, Smith uploaded two photos of veteran actor Mario Van Peebles. The caption read, in part, “Look who is play In with me n 5th season of Znation”

Van Peebles had actually posted a photo of himself in costume two days earlier, but his post did not make mention of what the project he was filming was.

Fans responding to Van Peebles’ tweet did express interest in seeing the actor dressed for the wild west, but suspected he might be suiting up for a sequel to Posse, the 1993 western film starring and directed by Van Peebles.

Filming in the Wild West , post apocalypse! #actor #actorslife #BlackTwitter pic.twitter.com/hvuQdjlmcB

— mariovanpeebles (@MarioVanPeebles) May 22, 2018

In addition to revealing the guest star, the photos confirm that Smith’s character Roberta Warren survives the end of Season 4 which saw her launched from a hangar aboard a drone carrying a potentially world-ending pathogen designed to usher in “the reset.” It also shows that Warren’s white-blonde hair from season 4 has returned to its natural color.

The show’s filming was delayed slightly earlier this month due to a contract dispute between producers and members of the Screen Actors Guild. Despite the delay, the show is still scheduled to return in September.