One of the most exciting casting announcements for the second season of Agents of S.H.I.E.L.D. was Adrianne Palicki’s guest role as the superhero Mockingbird. Like Jeremy Renner’s Hawkeye—a character whose comics counterpart actually has a relationship with her—Mockingbird isn’t so much a superpowered demigod as she is a highly trained S.H.I.E.L.D. operative. But before Palicki can become Mockingbird, she’ll first have to appear as Bobbi Morse.