Marvel's 'Agents of S.H.I.E.L.D.' brought back a bit of credibility in recent weeks, as we learned from "T.R.A.C.K.S." that seasonal guest character Mike Peterson (J. August Richards) was in fact being groomed for an incarnation of comic character Deathlok. But March 11 installment "Yes Men" will prove the most Marvel-ous one yet. 'Thor' star Jaimie Alexander will suit up as Lady Sif for the coming episode, the first photo from which appeared online!

Via TVGuide, our first look at Alexander in character for "Yes Men" solely focuses on the Asgardian warrior, who crosses paths with the 'Agents of S.H.I.E.L.D.' in search of comic villainess Lorelei ('Smallville' star Elena Satine). It's hard to tell exactly what to make of the photo of Lady Sif aboard the "bus," but unless we're mistaken, a bit of brawling might have done damage to Coulson's iconic Lola in the background.

Meanwhile, 'S.H.I.E.L.D.' executive producer and showrunner Jed Whedon had this to say of Sif's appearance on the Marvel series:

We always have our radar up for ways to tie our series into the Marvel films and bringing in an Asgardian really cements that connection. Lady Sif comes here on a hunting mission — sent by Odin [or is it?!] — to find her arch-enemy Lorelei and bring her back to Asgard. It throws our agents for a loop when they find themselves in a fight right alongside this powerful woman from Thor's world.

'Agents of S.H.I.E.L.D.' will first pick up with March 4 installment "Tahiti," with Skye still in mortal danger and Bill Paxton set to guest as agent John Garrett. Check out the first look at Jaimie Alexander's Marvel-ous appearance above, as well as the latest preview below, and tell us what you want ot see from the back half of Marvel's 'Agents of S.H.I.E.L.D.' in its first season!

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