'Heroes' Star Pleads Not Guilty to DUI

Adrian Pasdar -- the flying Senator in "Heroes" -- pleaded not guilty to one misdemeanor charge of driving under the influence today.

Pasdar -- who's married to Dixie Chicks singer Natalie Maines -- was arrested on January 27 after cops pulled him over for speeding on the 405 Freeway in Los Angeles.

Pasdar faces up to six months in jail and a $1,000 fine if convicted.