callboys
Cue the actors
Callboys is the plural of callboy, which has two distinct meanings.
In theater, a callboy alerts performers when it's time to go onstage: The callboy knocked on dressing room doors five minutes before curtain.
Separately, a callboy is a male prostitute who arranges appointments by phone, parallel to call girl.
backstage
Theater's hidden area
cue · stage manager · actors · rehearsal · director · cast · ensemble · lines · script · places
summons
Formal court notification
announcement · notification · signal · intercom · call · warning · reminder · wake-up · prompt · notice
role in production
callboysperformers
Those who entertain audiences
actors · actresses · stars · principals · leads