If there’s been an underdog on “NCIS” throughout its 19 seasons, it’s been the nervous, happy-golucky guy in glasses down in autopsy played since mid-Season 1 by Brian Dietzen, who’s long done a lot with less screen time.
“People were sleeping on Jimmy Palmer, man,” says fellow cast member Diona Reasonover. “He’s kind of the undercover sniper of people’s favorite characters.”
Now Dietzen has become the first actor in the show’s nearly two-decade history to co-write an episode. “The Helpers,” which he penned with “NCIS” executive producer Scott Williams, will air on CBS March 1. Dietzen, who had some background in writing an independent feature and short films, was as bashful as, well, the younger Jimmy Palmer about pursuing it for the show, “because we have one of the most…
