Greg Hartley is a fictional character portrayed by Jason Butler Harner in the TV series Law & Order: Special Victims Unit.
In the first episode they appeared in, titled Clock (season 8), they were 35 years old.
They appear in 1 episodes out of a total of 551 aired so far
Episodes1
Clock
episode S8.E2 september 2006A 17-year-old with the features of a little girl is kidnapped. Stabler sees parallels with his own daughter, and must deal with a new partner.