Pasdar was born in Pittsfield, Massachusetts. His father, Homayoon Pasdar, was an Iranian immigrant and cardiac surgeon, with a practice near Philadelphia. His mother, Rosemarie was born in Königsberg/Kaliningrad, a former German city in Russia, working as a nurse before becoming an English teacher and travel agent in France.
Pasdar graduated from Marple Newtown Senior High School in Newtown Square, Pennsylvania, and then received a football scholarship to the University of Florida to play linebacker. He was badly injured in a car accident during his freshman year. The accident left his face scarred, his legs badly injured, and kept him in a wheelchair for several months, at which time he had to finish his freshman year while undergoing intensive physical therapy, and he decided to become an actor.
- Colony (2016)
- Chasing Leprechauns (2012) as Michael Garrett
- Seeds of Destruction (2011) as Jack
- Home Movie (2008) as David Poe
- A Screwball Homicide (2003) as Nick Bennett
- Crossing the Line (2002) as Eric Harrison