I believe performance is the general skill when trying to deceive someone with a studied act.
Play the king in a disguise:
Disguise kit to make your look perfect
perform to act like you are the king
deception if someone talks to you while acting and asks questions you are not prepared for.
The actor feat specifically lists charisma(performance) as the skill used for pretending to be another person. I think that's a use for performance that is often overlooked. In addition, here are some ideas for it's use.
-- "Playing it cool", and blend in with a crowd. Useful in situations where outsiders are unwelcome or prohibited.
-- "Generate buzz", spread the word about an event, activity, club, etc. in order to increase it's popularity.
-- "Taunt", maybe allow a perform check in combat to inflict disadvantage on the first attack roll a creature makes against a creature other than the performer next round.