Z-list·er /ˈzed ˌlɪstə $ ˈziː ˌlɪstər/ noun [countable] informal
someone who appears on television, in magazines etc but is not very famous, or is famous without having achieved anything – used to show disapproval:
He can only get Z-listers to appear on his show nowadays.

[TahlilGaran] Dictionary of Contemporary English ▲