occupant

noun4

1. •
   A person who occupies a place.
2. •
   A person sitting in a car or other vehicle.
3. •
   The owner or tenant of a property.

   • I looked over to the Radley Place, expecting to see its phantom occupant sunning himself in the swing. The swing was empty. — 1960
4. •
   A person who occupies an office or a position.

   • I cannot say the same of the current occupant of the position