You could take a look here: http://www.bbbpress.com/dramagames/

Dunno what to recommend specifically as I don't know what your class personalities are like, but I think that if you're not into drama yourself, it'll probably be harder to get the kiddos interested.

Or if your coteacher doesn't pay too much attention, maybe you could just "dramatize" games by assigning character names to students or pretending there's a story involved (and then going light on the story and heavy on the game). If she/he's super picky then maybe she/he should find some drama games her/himself.