John Doe

John Doe (male) and Jane Doe (female) are multiple-use placeholder names that are used in the United States when the true name of a person is unknown or is being intentionally concealed. In the context of law enforcement in the United States, such names are often used to refer to a corpse whose identity is unknown or cannot be confirmed. These names are also often used to refer to a hypothetical "everyman" in other contexts, like John Q. Public or "Joe Public". There are many variants to the above names, including John (or Richard)/Jane Roe, John/Jane Smith, John/Jane Bloggs, and Johnie/Janie Doe or just Baby Doe for children.

A. N. Other is also a placeholder name, mainly used in the United Kingdom — which is gender neutral — along side Joe / Jo Bloggs and the now occasional use of the "John" and "Jane Doe" names. Provided by Wikipedia