understudy Synonyms

alternate secondary role bit player benchwarmer stopgap pinch hitter designated hitter stunt man locum stand-in fill-in standby hold the fort second string deputize for substitute for take the place of take over from act for cover for stand in for skivvy sit in for second team backup surrogate supplanter figurante figurant double deputy deputize delegate cover changeling attendant alternative locum tenens proxy substitute sub stand-by second reserve representative replacement replace relieve relief agent