gatekeeper

Definitions of gatekeeper
1

n someone who controls access to something

“there are too many gatekeepers between the field officers and the chief”
Type of:
individual, mortal, person, somebody, someone, soul
a human being

n someone who guards an entrance

Synonyms:
door guard, doorkeeper, doorman, hall porter, ostiary, porter
Types:
commissionaire
a uniformed doorman
night porter
a porter on duty during the night
ticket collector, ticket taker
someone who is paid to admit only those who have purchased tickets
Type of:
guard
a person who keeps watch over something or someone

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