A diva battle is brewing at “American Horror Story: Hotel,” and a “Star Trek” vet sets a course for “Arrow” in Friday’s casting roundup …

Naomi Campbell has joined the cast of “American Horror Story: Hotel” in a multi-episode arc, sources tell Variety. The model-turned-actress, who most recently recurred on “Empire,” will play a fashion editor who pays the ultimate price for her critiques. She will share scenes with Lady Gaga and returning “AHS” player Angela Bassett. [TV Line]

“Major Crimes'” Jeri Ryan is on the case for CW’s “Arrow,” guest starring in one episode of the superhero series. The “Star Trek: Voyager” alum will play a politically minded friend of the family of Oliver Queen (Stephen Amell). The casting may be apropos, as Ryan was once married to Illinois politician Jack Ryan. [Access Hollywood]