"NCIS" Season 13 Cast Mark Harmon Admits "Longevity In This Business Can Be Relatively Rare"

Mark Harmon has been in the business for a long time, after playing bit parts in the 70s until seeing his popularity peak with “NCIS” season 13, which is one of the longest running US shows that also resonated with the worldwide audience.
And the 64-year-old actor has gained a...
"NCIS" Season 13 Cast Mark Harmon Admits "Longevity In This Business Can Be Relatively Rare"