u/tommy0guns

This is not a theory, just an observation. Each and every time a new named character is introduced for the first time, preceding the on-screen intro is some type of door, elevator, gate, etc. This is pretty consistent across the trilogy. Obviously “doors” are a pretty big theme throughout the films and that’s its own topic. However, the connection to the characters only seems to really happen on the first reveal, including across each film. There’s only a few exceptions where a new named character is introduced via just “pop in”, most notably Sati appearing on the train platform.

This could be a nothing-burger and simply for style. It’s just so consistent when you look for it.

Morph is a pivotal piece of the show’s awesomeness. He is able to provide a bit of comic relief when scenes are carrying on too heavy. Morph doesn’t seem to need a huge backstory or forced love interest. Just plug him in as needed.

Morph also brings unlimited Easter eggs. How many times has a familiar character jumped onto the screen and make you say “oh snap!”