noun
regular member; regular player; regular guest
Refers to a person who is a fixed, non-temporary participant in a group, team, or program. Common in sports, TV shows, and organizational contexts.
See also: レギュラー
彼はサッカーチームのレギュラーメンバーだ。
He is a regular member of the soccer team.
That celebrity is active as a regular guest on variety shows.