The Irish actor Eoin Macken, 32 years old, plays Dr. T.C. Callahan. We met the actor at the Festival of Television of Monte-Carlo, in June. Eoin Macken talks about his character and this new medical series, which also relates to the military. Be aware, do not tell him he’s the new doctor McDreamy (Grey’s Anatomy) .. on the other hand, any resemblance with Vincent Cassel is not fortuitous.