Thomas Shannon is a fictional character portrayed by Michael O'Neill in the TV series Without a Trace.
In the first episode they appeared in, titled Silent Partner (season 1), they were 55 years old.
They appear in 1 episodes out of a total of 160 aired
Episodes1
Silent Partner
episode S1.E6 october 2002Patrick Kent, vice-president of a huge New York company owned by his father-in-law, disappears in an airport in San Diego. He is apparently intending to fly home to New York from a business trip he took on a regular basis, but the team uncover a secret life which may suggest that he never intended to return to his old one.