NCIS Mark Harmon: Tv Hero Is Big Zero!

Shocking secret life EXPOSED

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MARK HARMON plays a good guy on his hit NCIS crime drama, but in real life the TV investigator is a coldhearted jerk with a history of chasing skirts, insiders say!

The 65-year-old former UCLA quarterback, who plays Special Agent Leroy Jethro Gibbs on the world’s most-watched drama, is far from the “fair-minded hero he plays on TV,” says a source. “Mark can be a total jerk!”

Currently, his dirt-poor sister Kristin Nelson, 72, is recovering from a serious illness in Los Angeles after being released from a Santa Fe hospital. But Mark has so far refused to visit her or to even pick up the phone.

“Kristin is nearly destitute,” a source spills. “She got a small inheritance from her mother who died in 2012, but that money’s virtually gone now.

“Mark is worth millions. He won’t kick in a penny to help her out.”