We are trying to implement a roster - we are thinking we can do this using Event and Ticket Types (to indicate the shift). For this to be effective, we'd like a web page view that has a grid with the Event against the Ticket Type, listing in each cell (preferably) the names of the registrants (or at least a count of registrants).

My use case:
As a volunteer, I would like to see who is already registered for time slots without needing assistance from the organiser, so I can decide if I will register.

I've provided a mock up.