The question isn’t what Inspector Spacetime is… but when.
Get out your cell phone and scroll through the contacts until you come to a name that provokes a reaction inside of you. Joy, rage, confusion, fascination, embarrassment, fear, frustration, infatuation, anything.
Ask yourself why that person’s name caused that reaction in you. Don’t try to make it an accurate answer, make it your honest, personal answer. Make it a thousand overlapping micro-answers. Don’t find categorical terminology for any of it, just dump the marbles of emotional memory all over the floor, flood the room with them. You were infatuated with Rebecca because she wore Chuck Taylors and played bass and tasted like cigarettes.
Dan Harmon on writing characters with depth.
Are there any other writers of his jawn that answer questions like this on Tumblr, or anywhere?