A cameo role is a brief appearance by a well-known person, often in a film or television show. These roles are typically non-speaking or have minimal dialogue, serving as a fun surprise for the audience. Famous actors, directors, or even musicians often take on these roles to add a unique touch to the production. Cameo roles can also serve as a nod to fans or a way to connect different works within a franchise. For example, Stan Lee famously made cameo appearances in many Marvel films, delighting fans and creating a sense of continuity across the Marvel Cinematic Universe.