He had recurring guest appearances on Scrubs as Elliot Reid's boyfriend, Sean Kelly, and on Dawson's Creek as Cliff.

In addition, he had a starring role as Sergeant First Class Bob Brown in the CBS military drama The Unit, during its four-season run, and directed one episode.

Foley made his feature film writing and directing debut in 2013 with Let's Kill Ward's Wife.

[8] Foley became engaged to Polish-born actress Marika Dominczyk in 2006, and in June 2007, the two wed in a private ceremony in Hawaii.

In the seventh season's second episode of the genealogy reality program Who Do You Think You Are?, it was revealed that Foley had an ancestor, Samuel Wardwell, who was a defendant in the Salem witch trials.

Another ancestor, Simon Wardwell, was a member of then General George Washington's "Life Guard" during the Revolutionary War.