Attended Southern Illinois University and The University of Illinois in Chicago. Majored in History and Theater.
Has an older brother named Nathan and younger sisters named Megan and Gabriela.
Is an avid basketball player.
Grew up in Orland Park, Illinois.
Played various sports in high school including baseball, basketball and soccer.
Has a dog (half beagle-half terrier) named "The Gooch".
Daughter Isabella Justice Hartley (with Lindsay Hartley) born on 3 July 2004.
Replaced Will Toale as the young Aquaman, Arthur "AC" Curry, for the TV series, Aquaman (2006).
Was going to play the young Aquaman on Aquaman (2006) and then appeared as the Green Arrow/Oliver Queen on Smallville (2001). The episode "Justice" featured him as Green Arrow opposite Alan Ritchson as Aquaman, who's previous appearance on the episode "Aqua" had sparked interest in doing Mercy Reef (2006) (even though Ritchson, five years younger than Hartley, was not considered for the Mercy Reef (2006) series).
He watches professional wrestling.
An avid baseball fan his entire life. His two favorite teams are the Cubs and the Dodgers.
Has played two members of the DC Comics Justice League: Aquaman and Green Arrow.
He is the first actor to play a live-action version of DC Comics hero Green Arrow.
Announced in the Passions fan fest that he is leaving the show. The role of Fox Crane will be recast. [October 2005]
He appeared in the "Smallville" panel at the San Diego Comic-Con 2007. [July 2007]
(July 31, 2016) Engaged to girlfriend of 2 1/2 years, Chrishell Hartley.