Sif

Lady Sif is a fictional warrior woman and a supporting character featured in comic books published by Marvel Comics. She is associated with the Thor line of comic titles and made her first appearance in a story called "Slave of Zarrko, the Tomorrow Man!" from Journey Into Mystery #102. She also appeared in the Marvel Cinematic Universe where she was played by future The Blindspot actress Jaimie Alexander. She was introduced in the 2011 Thor feature film, and also appeared in its 2013 sequel, Thor: The Dark World. She also appeared in the Agents of "Yes Men" episode of the Agents of S.H.I.E.L.D. television series in 2014.