Agent Trahn is a fictional character portrayed by David Lim in the TV series Castle.
In the first episode they appeared in, titled Linchpin (season 4), they were 28 years old.
They appear in 1 episodes out of a total of 173 aired
Episodes1
Linchpin
episode S4.E16 february 2012Castle and Beckett race to find the "Linchpin" in order to stop the first domino in a chain of events which will plunge the United States into war.