Jaimie Alexander (born March 12, 1984) is an American actress known for portraying Jessi on the TV series Kyle XY and Sif in the 2011 superhero film Thor, it's 2013 sequel, Thor: The Dark World, and Agents of S.H.I.E.L.D.. Since 2015 she stars in the NBC series Blindspot.
Jaimie Alexander was born in Greenville, South Carolina, and 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 actually 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.
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The Minute You Wake Up Dead
Delaine
2022

Thor: Love and Thunder
Sif
2022

Last Seen Alive
Lisa Spann
2022

What If...?
Lady Sif (voice) · (2 episodes)
2021

Loki
Lady Sif (uncredited) · (1 episode)
2021

London Fields
Hope
2018

The F Word
Self · (1 episode)
2017

Talking with Chris Hardwick
Self · (1 episode)
2017

Broken Vows
Tara
2016

Blindspot
Jane Doe · (100 episodes)
2015

Open
Claire
2014

Thor: The Dark World
Sif
2013

Marvel's Agents of S.H.I.E.L.D.
Lady Sif · (2 episodes)
2013

Savannah
Lucy Stubbs
2013

Collision
Taylor Dolan
2013

The Last Stand
Sarah Torrance
2013

Perception
Nicky Atkins · (1 episode)
2012

Honest Trailers
Sif (archive footage) · (1 episode)
2012

Loosies
Lucy
2012

Thor: From Asgard to Earth
Self
2011

The Birds of Anger
Annie
2011

Thor
Sif
2011

Love & Other Drugs
Carol (uncredited)
2010

Covert Affairs
Reva Kline · (2 episodes)
2010

Hallowed Ground
Liz Chambers
2007

Watch Over Me
Caitlin Porter · (57 episodes)
2006

Rest Stop
Nicole Carrow
2006

Kyle XY
Jessi XX · (33 episodes)
2006

The Other Side
Hanna Thompson
2006
The Very Best People

Standoff
Barrista · (1 episode)
2006

Bones
Molly Briggs · (1 episode)
2005

It's Always Sunny in Philadelphia
Tammy · (1 episode)
2005

CSI: Miami
(1 episode)
2002