Unknown

Unknown refers to a situation where no available information exists pertaining to a certain subject. In the case of entertainment media, this could refer to many things such as the production crew charged with putting together a certain project, actors and actresses involved with the project or even certain characters. It may also refer to in-universe situations where information is not made available to certain parties. This usually applies to a situation where a character's final fate is left unknown. A film may imply that a character dies or enters into a situation where death is imminent, but as it is not shown on the screen, the information cannot be validated for certain.

In the 1957 film Attack of the Crab Monsters, actors Robin Riley and Doug Roberts play characters who are unidentified. In the 1958 Roger Corman movie War of the Satellites, actor Tony Miller plays an unidentified character.