One who gatekeeps.
A person or group who controls access to something or somebody.
In dissociative identity disorder, an aspect of the personality that controls access to the various identities.
A person who guards or monitors passage through a gate.
A common orange and brown butterfly with eyespots, Pyronia tithonus, of the family Nymphalidae.
An overseer of slaves at work; a person who puts slaves to work.
An employer who demands excessive amounts of work from employees.