Colin Hanks would go on to appear in two more episodes of "NCIS" after that, including the finale of season 10 and the premiere of season 11. But following that, Hanks never returned to the series as Richard Parsons. However, as the character wasn't killed off (via The Express), there's always a possibility that Hanks could return to the series in the future — even if his appearance was more than a decade ago.
In the 10 or so years that Hanks has been absent from the show, the actor has found plenty of roles to dedicate his time too. Other than the likes of "Fargo" and "Life In Pieces," Hanks has also contributed his talents to "Bad Teacher" and "What Lives Inside" (via IMDB), as well as more recently playing Mike Emmick in the second season of the "American Crime Story" anthology "Impeachment," per Men's Health. He's also set to star alongside Giovanni Ribisi and Dan Fogler in another series called "The Offer," which will tell the story of how "The Godfather" was made, Variety reported.