guest star
verb1
Of an actor: to star as a guest.
2
Hobbies, Lifestyle, Sports Of a player: to play as a guest of another team.
noun, verb — 5 senses
Entertainment, Lifestyle, Music A guest on a music or other recording.
Broadcasting, Media, Television An actor on a television program who stars in one, or a few, episodes.
Of an actor: to star as a guest.
Hobbies, Lifestyle, Sports Of a player: to play as a guest of another team.
Etymology Calque of Literary Chinese 客星 (kèxīng).
Astronomy, Natural sciences Historical A nova or supernova recorded in Chinese astronomy which appeared where no star was known before.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.