At first, it was said that agent Gibbs drinks bourbon and in a later episode, he said it was "Gentleman Jack". (Gentleman Jack is a brand of Tennessee whiskey produced by the Jack Daniel Distillery).
NCIS’s Senior Field Agent, Leroy Jethro Gibbs is addicted to caffeine and is rarely seen without a styrofoam cup of strong, black coffee in his hands.
One of the best ways to get on the wrong side of Gibbs is to 'mess' with his coffee. Off-duty he drinks either once again strong, black coffee or high-proofed bourbon, referred to once by Tobias Fornell as ‘paint stripper’.
Read more about Leroy Jethro Gibbs at USANetwork.com.
Watch full episodes of NCIS, view video clips and browse photos on CBS.com.
Know about the 17 Alcoholic Beverages Made Famous By Movie & TV Characters, featured on Phactual.com.