How to... select an avatar as a main character for your course

Hi folks,

I guess the title says it all I want to create something where a user can select one of multiple characters before starting a course... That character will then be the main character in the course.

I had a look at Mike Enders screenr here and figured I'd so something with placing all characters over each other and enable/disable them based on a variable. Mike countered that you could do something with one object and have all character options as states but that seems complex to me especially if I want my main character in different poses.

If I take it a step further I'd perhaps like the character that haven't been chosen to play a part in the scenario...

Anyone got some brilliant ideas?