Mark is a fictional character portrayed by Dan Shea in the TV series Psych.
In the first episode they appeared in, titled Heeeeere's Lassie (season 6), they were 57 years old.
They appear in 1 episodes out of a total of 120 aired
Episodes1
Heeeeere's Lassie
episode S6.E11 march 2012After Lassiter moves into a new condominium building and strange things start happening to him, he is forced to hire Shawn and Gus to figure out what could be causing the supposed paranormal disturbance.