"Sidekick audience" is a term used to refer to the supportive group of people who stand by and cheer the main protagonist or character in a performance or event. Synonyms for "sidekick audience" include fan base, cheer squad, fan club, support team, backup crew, and spectator crowd. These synonyms highlight the essential role that the audience plays in providing encouragement and support to the main performer or character. Whether it's a sports event, a theatrical performance, or a music concert, the sidekick audience is an integral part of the overall experience, adding enthusiasm and energy to the proceedings and helping to create an unforgettable event.