Lui e Lei (comedy in 15 sketches about the life of a couple), minimum 2 characters, a man and a woman, but the distribution is very flexible.
A man and a woman grapple with the comical situations they encounter on a daily basis, including their wedding night and their teenage daughter’s first date with a boy. The text also allows a lot of flexibility in the stage setting:
https://stage.annamariamartinolli.it/en/library/scripts/jean-pierre-martinez-en/lui-e-lei/