R. Lee Ermey in Apocalypse Now

Hi, R. Lee Ermey appeared previously in the site as an uncredited actor in "Apocalypse Now" but was deleted. In the pictures of the movie in the site, appears a shot of his appearance, with the tag of his name. I tried to re-add him to the cast several times, but always was rejected, because "unable to verify". https://www.imdb.com/title/tt0078788/mediaviewer/rm1906780416/ 250429-113635-998000