Comic relief

When Teddy Baxter's career was in decline, after the loss of his double act partner, he was reduced to providing comic relief in low-calibre films, at his own estimation. (AUDIO: The Vardan Invasion of Mirth)

identified Nardole as comic relief to Bill Potts' exposition, clarifying to the former that was she refering to them as genders rather than functions. (TV: World Enough and Time)