It was announced earlier this week by Marvel Entertainment that Drea de Matteo (The Sopranos, Sons of Anarchy, Californication) would be joining the cast of Marvel's Agents of S.H.I.E.L.D. as a villain. She will portray Karla Fay Gideon who is described as "a Gifted woman with a grudge to bear against S.H.I.E.L.D. who joins forces with Skye's father."
Clark Gregg
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Mockingbird Cast in 'Agents of S.H.I.E.L.D.'
They hinted towards this at SDCC with Patton Oswalt's humorous video clip, now its official. Barbara "Bobbie" Morse aka Mockingbird has been cast and the actress playing her is Adrianne Palicki (Supernatural, G.I. Joe, Friday Night Lights.) This isn't her first foray into the televised adventures of superheroes. She was cast as Wonder Woman in the failed NBC pilot by David E. Kelley back in 2011. She was also in the failed WB pilot for Aquaman, as Nadia an evil type character. Now she'll join the amazing cast of Agents of S.H.I.E.L.D. and play an important Marvel character...important to Hawkeye's love life at least.