Pasdar was born in Pittsfield, Massachusetts. Initially, he was offered a football scholarship to the University of Florida to play linebacker. However, an accident occurred causing him to seek intensive physical therapy.
Then he turned his attention to acting and writing. He dropped out of school as he was unable top play and joined the theater group, People's Light and Theatre Company. At the age of 19, he appeared in Top Gun, which eventually led him to play on bigger roles. He had directed numerous movies as well which includes Beyond Belief and Otherllo (1999).
In television, he is most notable for playing Nathan Petrelli in NBC's drama Heroes.
- Top Gun
- Near Dark
- The Twilight Zone
- Desperate Housewives