After a performance, any member of the public can wait at the stage door to hopefully catch a glimpse of their favourite actors after a show. Please note it is down to an actor’s individual discretion whether they greet people at the stage door.
Treat performers with the same respect that you would give to friends, family, and colleagues. If you do get to meet the actors at the stage door, then show your appreciation for the actor and make sure to say thank you! Be kind and considerate of other fans around you too.