Jaimie Lauren Alexander (born Jaimie Lauren Tarbush; March 12, 1984) is an American actress. She is known for portraying Jessi on the TV series Kyle XY and Lady Sif in the Marvel Cinematic Universe films Thor (2011), Thor: The Dark World (2013), and Thor: Love and Thunder (2022), as well as the television series Agents of S.H.I.E.L.D. (2013–2020) and the Disney series Loki (2021). From 2015 until 2020, she starred in the NBC series Blindspot.

Early life
Jaimie Alexander was born in Greenville, South Carolina, but moved to Grapevine, Texas, when she was four years old. She is the only girl in a family of five children. Alexander first got into acting in grade school, where she took theater for fun. Alexander stated that she was kicked out of theater when she was in high school because she could not sing, so she instead went into sports. When she was 17, she substituted for a friend at a meeting with a scouting agency and she met her manager, Randy James, who sent her some scripts. After her graduation from Colleyville Heritage High School, a year and a half later, she moved to Los Angeles to pursue her acting career.