Star Trek is a franchise that has been aging up its actors since The Original Series episode “The Deadly Years,” and the practice certainly didn’t stop with “Unnatural Selection.” For example, Deep Space Nine aged up Dr. Bashir on multiple occasions, like when he was hit by a telepathic attack in “Distant Voices,” or when we saw an alternative future version of him in “The Visitor.”
Of course, Bashir actor Alexander Siddig is amusing proof that no matter the quality of the old-age makeup, these designers can’t predict just how sexy these Star Trek actors will stay as they age (Google him now, thank us later).