My favorite fictional stage manager is Scooter from The Muppet Show. I'm a stage manager and I love puppets, so he is my favorite.
There is some debate if Scooter was a go-fer and more of an ASM, and if Kermit was the true Stage Manager of the Muppet Show. (Maybe Kermit was the PSM).
I LOVE this discussion! Scooter for the win!
As a Disney fan, I also want to mention that during the pre-show at the Mickey's Philharmagic attraction at Walt Disney World, you hear Goofy calling places and then he said "Being a Stage Manager is fun!" Haha!