actor who is brilliant on stage but hopeless at everything else
Describes a person whose entire life revolves around acting, often to the point of being incompetent or clueless in daily matters. Can be used affectionately or critically.
He's a stage-obsessed actor who can't do anything besides acting.
dedicated actor; actor who lives and breathes acting
Colloquial term for someone who is utterly devoted to acting, often implying a single-minded passion. The nuance can be positive (admirable dedication) or slightly negative (obsessive).
That acting nut spends even his days off rehearsing.
Similar construction for a comedian or entertainer who is obsessed with their craft and inept elsewhere.
Nearly synonymous, but 芝居馬鹿 emphasizes the theatrical performance aspect more than the actor themselves.
Standard kanji spelling.
Variant spelling using katakana for バカ, common in casual writing.
Compound of 役者 (actor) and 馬鹿 (fool, idiot). The term likely arose from the idea that an actor so devoted to their craft becomes foolish or useless in other areas of life.