Conor Leslie, who plays Donna Troy/Wonder Girl, dons the infamous Deathstroke mask in a photo from the set of DC Universe's Titans

Leslie posted the image on Instagram while promoting the first episode of Season 2. In her caption, she included the sign-off, "Yours truly, Deathstroke Girl."

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Of course, Leslie was sure to provide a disclaimer that read: "Don’t read into this kids. It’s not a spoiler or a hint. This was just me goofing around after stunts today captured by the one and only."

Leslie made her appearance as Donna in the latter half of Titans Season 1. While just a recurring character in the first season, it has been reported Donna will play a larger role in the second season.

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Portrayed by Esai Morales, Slade Wilson -- a.k.a. Deathstroke -- made his debut on Titans in the Season 2 premiere. The character is one of the Teen Titans' most infamous villains in both the comics and Cartoon Network's early 2000s animated adaptation.

Streaming now on DC Universe, Titans Season 2 stars Brenton Thwaites as Dick Grayson, Anna Diop as Kory Anders, Teagan Croft as Rachel Roth, Ryan Potter as Garfield Logan, Curran Walters as Jason Todd and Conor Leslie as Donna Troy, with Minka Kelly as Dawn Granger, Alan Ritchson as Hank Hall, Joshua Orpin as Superboy, Chelsea Zhang as Rose Wilson, Chella Man as Jericho, Drew Van Acker as Aqualad, Esai Morales as Deathstroke and Iain Glen as Bruce Wayne.