Marvel's Agents of S.H.I.E.L.D. Season 2 Spoilers: New Episode 13 'One of Us' Promotional Photos Released

Marvel's Agents of S.H.I.E.L.D. returns with a new Season 2 episode on Tuesday, but some promotional images for the following episode, entitled "One of Us," have now been released.

Comic Book Movie has collected the photos, which contain images of Kyle Maclachlan as Cal. Check them out here.

The episode airs Tuesday, March 17, and the description seems to reveal that Drea de Matteo makes her debut as Karla Gideon. Check out the description below:

"'One of Us' - Cal seeks revenge on Coulson by assembling a team of Super Villains to destroy S.H.I.E.L.D. Meanwhile, May calls on renowned Dr. Andrew Garner (Blair Underwood), her charismatic ex-husband, with a crisis that threatens to tear the team apart, on Marvel's Agents of S.H.I.E.L.D., Tuesday, March 17 (9:00-10:00 p.m., ET) on the ABC Television Network.

Marvel's Agents of S.H.I.E.L.D. stars Clark Gregg as Director Phil Coulson, Ming-Na Wen as Agent Melinda May, Brett Dalton as Grant Ward, Chloe Bennet as Agent Skye, Iain De Caestecker as Agent Leo Fitz, Elizabeth Henstridge as Agent Jemma Simmons, Nick Blood as Lance Hunter and Adrianne Palicki as Bobbi Morse.

Guest starring are Henry Simmons as Alphonso 'Mack' Mackenzie, Kyle Maclachlan as The Doctor/Cal, Jamie Harris as Gordon, Blair Underwood as Dr. Andrew Garner, Drea De Matteo as Karla Faye Gideon, Ric Sarabia as Wendell Levi, Geo Corvera as Francis Noche, Jeff Daniel Phillips as David A. Angar, Gregg Martin as student, Jack Kennedy as security guard and Jamal Duff as John Bruno."

Those of you familiar with the comics may note that some of the character names in that guest star list hint at a supervillain team, possibly a version of the Masters of Evil.

What do you think of the description? Let us know in the comments section.