Jaimie Alexander to Guest Star as Lady Sif on Marvel’s Agents of S.H.I.E.L.D.

ABC announced today at the TCA panel that Thor and Thor: The Dark World star Jaimie Alexander will guest star as Lady Sif in the upcoming 15th episode of “Marvel’s Agents of S.H.I.E.L.D.” The only info revealed about the character’s appearance was that she has “come to Earth with a very specific mission.” Check back for more updates on the matter at we learn them.

Marvel Entertaiment also teased fans of the series by revealing that the identity of “the Clairvoyant” will be revealed in the final 9 episodes of the show’s first season. Any theories on who the Clairvoyant might be or what Lady Sif is doing on Earth? Sound off below!

“Marvel’s Agents of S.H.I.E.L.D.” stars Clark Gregg as Agent Phil Coulson, Ming-Na Wen as Agent Melinda May, Brett Dalton as Agent Grant Ward, Chloe Bennet as Skye, Iain De Caestecker as Agent Leo Fitz and Elizabeth Henstridge as Agent Jemma Simmons.

“Marvel’s Agents of S.H.I.E.L.D.” airs Tuesdays at 8 P.M. on ABC.