1
general::
That very person or thing, the same as. For example, In the elevator I ran into none other than the woman we'd been talking about, or It turned out to be none other than Jim in a clown costume. [Late 1800s]
American Heritage Idioms
2
general::
Phrase(s): none other than
Cliché the very [person]. (Expresses surprise.) • The new building was opened by none other than the president. • Bob’s wife turned out to be none other than my cousin.
McGrawhill's American Idioms And Phrasal Verbs