Michael Vartan and Jennifer Garner of Alias

Character names: Michael Vaughn & Sydney Bristow
Years dated in real life: 7 months

Though Jennifer Garner's current alias is Mrs. Ben Affleck, she fell in love with her TV beau, Michael Vartan while she kicked ass on ABC's hit action-drama Alias. Vartan played Michael Vaughn, Syndey Bristow's CIA partner. Unfortunately for Vartan, after Garner met Affleck on the set of Daredevil, her interest in Vartan fizzled.