Well, when you say "classical", do you mean Greek and Roman? That's outside the boundaries of my literary knowledge. But if you're looking at the Renaissance (you mentioned Faustus), it's always been my opinion that the great baudy commedies are far too often ignored. Something like A Chaste Maid In Cheapside by Middleton is bound to get laughs and keep an audience amused. Another idea might be a good citizen comedy, like Johnson's The Alchemist and Volpone, both fun plays with some very disturbing social commentary thrown in. Both present many challenges that a good actor would embrace.
"Sometimes a thousand twangling instruments will hum about mine ears; and sometimes voices, that, if I then had wak'd after long sleep, will make me sleep again; and then, in dreaming, the clouds methought would open and show riches ready to drop upon me, that, when I wak'd, I cried to dream again"