The police are investigating the case of persons unknown.

I always keep my identification card on my person.

He is the 3rd person in line.

You are my favorite character in the book.

You are my best friend.

I am the first person to arrive at the party.

He is a doctor.

She is the go-to person for all our technical issues.

The ape-person is believed to be an ancestor of modern humans.

The respecters of persons in the company always give preferential treatment to certain employees.