Heckler

A heckler is someone who speaks their mind loudly, often in a mean-spirited or disruptive way. They may shout out rude or critical comments during a performance, for example during a play or comedy show. They can also heckle people in everyday situations, like when someone is giving a speech or making a presentation. Hecklers may be trying to be funny, but their comments can be hurtful and make people uncomfortable.