Typecast (verb)

1. To cast an actor in a role that is similar to previous ones they have played.
2. To stereotype or classify someone based on previous roles, experiences, or characteristics.

Origin:

From type + cast, from the practice of casting actors in roles similar to ones they have played before.

Examples:

1. He was typecast as the villain in many of his movies.
2. She was typecast as the ditzy blonde in most of her roles.
3. He was typecast in comedy roles after his successful sitcom.
4. She was typecast as a serious actress and had a hard time getting comedic roles.
5. He was typecast and had a hard time finding new roles to play.