In order to highlight Palaestrio’s craftiness, Plautus has Periplectomenus in a long aside describe the slave's planning while the actor playing the slave mimes intense deliberation (Brooklyn College)

What does not occur very often in Faust, though, are true asides, and most particularly those comical remarks which would normally produce a laugh in the audience. (Nancy Thuleen)

Rene would regularly explain his ongoing predicament at the start, and make asides at the Audience regarding other people's leading statements. (tvtropes.org)