Related Clues:
- Phone ID?
- Knocker's words
- ''Who's there?'' answer
- Doorbell ringer's response
- Response after knocking
- Words upon removing a disguise
- Words from a well-known caller
- Response with a ringing doorbell
- Answer to "Who's there?"
- Attendee's response
- Cry upon arriving
- "Mulder, __": Gillian Anderson biography
- ''Who's there?'' response
- Voice mail message opener, perhaps
- Shout after a knock