E! Online: Who's ready for some Thor action on Marvel's Agents of S.H.I.E.L.D.?!
In tomorrow's episode, "Who You Really Are," fierce Thor warrior Lady Sif (Jaimie Alexander) makes her grand return to the ABC comic book series...but she's going to be a bit different when she reunites with the S.H.I.E.L.D. team this time around. In fact, she might not even remember her own identity!