7.2
/10
Mark Duncan is a fictional character portrayed by John Allen Nelson in the TV series Without a Trace.
In the first episode they appeared in, titled True/False (season 7), they were 49 years old.
They appear in 1 episodes out of a total of 160 aired

Mark Duncan

by John Allen Nelson

character

Episodes1

  • 7.2
    /10

    True/False
    episode S7.E4 october 2008
    A teenage boy's disappearance appears to be related to either his father's job busting counterfeiters for the government, or selling tests to classmates at his prep school.