Comedy sidekick is a term that's commonly used in the entertainment industry to describe a character who provides comedic relief to the protagonist of a story. However, there are a plethora of synonyms one could use to describe this type of character. For instance, one could use the term comedic partner, comic foil, comedic relief, or funny friend to describe the character's role. Additionally, one could describe the character as a humorous companion, amusing associate, or droll sidekick. These synonyms all aim to capture the essence of the character's role in the story, which is to create moments of humor and levity for the audience.