gray men

Noun

gray man (plural gray men)

1. An average, forgettable man who does not draw attention or stand out in a crowd.
   • He was said to be a perfect match for his own description of the ideal intelligence officer, "the traditional gray man, so inconspicuous that he can never catch a waiter's eye in a restaurant."1996, "Colby's Body Found Along River Shore", Washington Post, Todd Shields, ISSN 0190-8286

   Synonyms:

   little gray man, little grey man