Colin Parnell is a fictional character portrayed by John Costelloe in the TV series Law & Order.
In the first episode they appeared in, titled Endurance (season 11), they were 38 years old.
They appear in 1 episodes out of a total of 501 aired so far
Episodes1
Endurance
episode S11.E1 october 2000A frustrated, over-stressed mother is charged with murder after starting a fire that killed her disabled son, but the case weighs heavy on Jack McCoy's conscience. Nora Lewin is introduced as DA Adam Schiff's replacement.