Monotaro - The Lowkey Scared One
Monokid - The Scenemaker
Monodam - The Quiet One
Monophanie: The One that Moves Around too much (she would probably be swinging her frying pan around)
Monosuke: The Waiter

(Edit: there's supposed to be a video in the media but it's not showing up so here it is)

[There should be a GIF or video here. Update the app now to see it.]