Purdy's appearance at the Wireless Festival in Leeds led to a special request from The Who member Pete Townshend and musician Rachel Fuller to play with them at their acoustic "In the Attic" series of shows.

Purdy's band members have included Chris Seefried, Brian Wright, Willy C. Golden, Al Sgro, and Mike Freas.

His song "Wash Away (Reprise)", from the Julie Blue album, was chosen by J. J. Abrams for the third episode of ABC's hit TV show Lost in its first season.

[citation needed] In addition to "Suitcase", Purdy landed two more songs in Grey's episodes "Can't Get It Right Today" (from You Can Tell Georgia) and, most recently, "San Jose" (from Take My Blanket And Go).

Purdy played the lead role of Elliot in the feature film American Folk, which was released in the U.S. through Good Deed Entertainment on January 26, 2018.