The main character. A doubtful quiet novitiate grappling with a huge decision. Most of her struggle in the film is internal (until the very end, when she explodes) so an ability to portray emotional and mental turmoil without speaking is very necessary.

The secondary character. The most comedic role. He is a rather ridiculous character, like a Bill Burr rant come to life, who loses faith in his cause over the short film. So being able to believably pull off humor while still being able to get serious is very necessary.

An unhappy, rough-around-the-edges nun who spends most of the film upset about a sandwich. So an ability to believably pull off being upset about a sandwich without being over the top is very necessary.

A by-the-books nihilist hitman, acts more like an accountant than a nihilist hitman. The kind of guy who’d correct you for using the wrong form of “their” and be completely unironic about it.