Production on Fox's "Deadpool" film continues apace, with the star of the movie, Ryan Reynolds, taking to Twitter once again to share the latest cast member reveal.

Titled "Negasonic Teenage Wat-The-Shit?!," Reynolds newest photo from the movie's set features himself as the Merc with a Mouth alongside Brianna Hildebrand's character, the apparently unimpressed mutant known as Negasonic Teenage Warhead.

With only a handful of appearances to her name, even the most diehard of X-Men fans might not recall the young mutant. She appeared briefly during Grant Morrison's run on "New X-Men" in 2001, appearing in two issues before dying in the mutant massacre on the island nation of Genosha. An illusory version of the character came back for an arc of Joss Whedon's run on "Astonishing X-Men," titled "Torn." She was later resurrected and killed again as part of the "Necrosha" storyline.

Unlike recently revealed characters like Weasel (T.J. Miller) and Vanessa (Morena Baccarin), who have lengthy established ties to Deadpool, Negasonic Teenage Warhead never crossed Wade Wilson's path in the comics.

Negasonic Teenage Wat-The-Shit?! pic.twitter.com/sUCS7u7BBR- Ryan Reynolds (@VancityReynolds) April 11, 2015

Additionally, Reynolds continues to use his social media presence to engage the burgeoning fanbase for the upcoming film, retweeting a particularly fun piece of fan art.

There should be an award for fan art. pic.twitter.com/4Kge5FhoWk- Ryan Reynolds (@VancityReynolds) April 12, 2015

"Deadpool" will arrive in theaters on February 12, 2016.