Adrianne Palicki is Joining Marvel's Agents of S.H.I.E.L.D. as Mockingbird

Friday Night Lights fans, brace yourselves: Adrianne Palicki is joining Marvel's Agents of S.H.I.E.L.D. in a pretty cool role. She'll play Bobbi Morse, aka Agent 19, and possibly better known by her superhero moniker, Mockingbird (who also eventually becomes an Avenger). She'll start her stint on the fifth episode of the second season, which comes back Sept. 23.