Dr. Ron Leonard is a fictional character portrayed by John Ellison Conlee in the TV series NCIS: Los Angeles.
In the first episode they appeared in, titled Omni (season 5), they were 45 years old.
They appear in 1 episodes out of a total of 323 aired
Episodes1
Omni
episode S5.E3 october 2013Deeks returns; in LA the CEO of a biotech firm dies in an explosion of his car; the firm does research for a vaccine against the deadly ricin virus; the G team figure out the bombing and a theft by extortion, and they catch the bad guys.