In September 2009, it was reported that Alexander would portray Sif in the live-action superhero film, Thor, directed by Kenneth Branagh and released in May 2011. She also appeared in a Matthew Perryman Jones music video of the song "Save You" released in September 2009.
She reprised the role in the sequel Thor: The Dark World, released in November 2013. In 2010, Alexander appeared in a web series for MSN entitled Ultradome produced by Milo Ventimiglia.
She reprised the role twice in special crossover guest appearances on the TV series Agents of S. In the series Alexander portrayed Han Solo in battle against Indiana Jones for the title of best Harrison Ford character.
In 2011, Alexander reunited with writer/director Gregg Bishop for The Birds of Anger for NBCUniversal G4Films.
“It’s very new to me and it’s scary,” Alexander said of their relationship.
“But it’s also something we don’t want to give up on because I know how it makes me feel in my heart, It makes me feel really good.
In 2006, she had her first lead role in the horror film Rest Stop where she portrayed 'Nicole Carrow', a girl who escapes from home and goes on a trip with her boyfriend, which is unexpectedly interrupted at a rest stop by a deranged serial killer.
In 2007, she had her second lead role, also in a horror film.
“Matt gets the vision of my videos and my book,” Tyler tells Just Her career was launched in 2003, when she was cast in the leading role of Hanna Thompson in the low budget award-winning film The Other Side. After her graduation from Colleyville Heritage High School, a year and a half later, she moved to Los Angeles to pursue acting.This was soon followed by a guest appearance in It's Always Sunny in Philadelphia, where she portrayed a femme fatale in the role of 'Tammy', who through a combination of seduction and threats manipulates one of the main characters.She also has a small part in an episode of Standoff.RELATED: Peter Facinelli: Does He Have a New Girlfriend?