Greg Jarmon is a fictional character portrayed by Stephen Mailer in the TV series Law & Order.
In the first episode they appeared in, titled The Serpent's Tooth (season 1), they were 25 years old.
They appear in 1 episodes out of a total of 501 aired so far
Episodes1
The Serpent's Tooth
episode S1.E19 march 1991A businessman and his wife are killed. The couple's two sons emerge as the most likely suspects, but detectives later find business ties to the Russian mob.