B-lister       
noun [ C ] uk/ˈbiː.lɪst.ər/ us/ˈbiː.lɪst.ɚ/
 二线明星,二流演员
someone who is quite famous but not as famous as an A-lister (= one of the most famous of all famous people)
  The actress has no intention of being a B-lister. 这位女演员无意成为二线明星。 
 Celebrity magazines are jam-packed with B-listers. 名人杂志上挤满了二流演员。 
 See: B-list
 - More examples
 - Companies try to align themselves to A-list stars, as well as B-listers.
 - The list of guests include Hollywood A- and B-listers.
 - I hate programmes about the "lovely homes" of B-listers.