The phrase "about a character named" is correct and usable in written English.
You can use it when discussing a specific character in a story, book, or film, often to introduce or describe that character.
Example: "The novel is about a character named Elizabeth who struggles with her identity in a changing world."
Alternatives: "regarding a character called" or "concerning a character referred to as".
— The graphic novelist Chris Ware, in the magazine Intelligent Life, discussing his continuing series about a character named Rusty Brown.
The concept was conceived by Edward Packard while telling his daughters bedtime stories about a character named Pete.
I began a novel about a character named Andrew Rally, the young star of "L.A. Medical," a fatuous network gold mine.
Jonathan Blow's seminal indie platformer is ostensibly about a character named Tim who sets out to rescue a princess from a monster.
Mr. Ackroyd's new book is an ostensibly philosophical fantasy about a character named Plato who lives in the London of the distant future.
The story — one of the dozens that Gallant has had published by The New Yorker in the course of over fifty years — is part of a largely autobiographical series about a character named Linnet Muir.
What this book, which is billed as nonfiction but which seems to be a memoir in fictional form, is really about is a character named Sandra and her neuroses -- we witness her suffering, albeit comically, from both a midlife crisis and searing jealousy of others' success.
Another familiar face was Senator Orrin Hatch, Republican of Utah, whose questions about pornographic movies, especially one with a character named Long Dong Silver, and suggestions that Ms. Hill had fabricated her testimony, helped ignite women's anger.
There aren't many actresses who'd be excited about playing a character named "Fat Amy".
It was as if he were talking about someone else, a character named Kent Easter that he did not particularly love.
