A supporting role refers to a character or person who plays a secondary or minor part in a story or task. They assist the main character or take on a smaller responsibility. Full definition
At the end of each of the game's chapters you're awarded new cards, including several star players who play supporting roles in the story. (caughtoffside.com)
Serve in administrative support roles for corporate clients in diverse industries, including IT, education, manufacturing, real estate and healthcare. (monster.com)
Though she never became a star, she did play supporting roles in a few high - dollar productions. (rottentomatoes.com)