Jaimie Alexander (born Jaimie Tarbush; March 12, 1984) is an American actress best known for portraying Jessi on the TV series Kyle XY and Sif in the 2011 superhero film Thor. This book is your ultimate resource for Jaimie Alexander. Here you will find the most up-to-date information, photos, and much more. In easy to read chapters, with extensive references and links to get you to know all there is to know about her Early life, Career and Personal life right away. A quick look inside: se drag & drop to reorder wiki pages and chapters, Jaimie Alexander, Rest Stop (film), The Other Side (2006 film), Hallowed Ground (film), Thor (film), Last Stand (2013 film), Kyle XY, Nurse Jackie.