Rocky Carroll is forever grateful to ... on the hit TV series when in reality, Rocky and Mark had already co-starred on another show – CBS medical drama, Chicago Hope, from 1996 to 2000.

Ever since Alden Parker (Gary Cole) took over Leroy Jethro Gibbs’ (Mark Harmon) desk at NCIS ... connection between the two of them,” Rocky Carroll, who stars as Leon Vance and also directed ...

After leaving NCIS, Mark Harmon went ... of Honolulu with Leon Carroll Jr., a former real-life NCIS agent. Carroll also served as a technical adviser on the show, who Harmon discovered after ...