Giddy-up - Eagle-Time Gaming

Just off the top of my head, there's Dr. Strange and Dr. Doom.

Admittedly, it's not very likely that Peter Parker would be working for the Sorceror Supreme or the despotic ruler of a foreign nation, but what if he was?

I got so angry at myself while editing because I had forgotten Dr. Strange!

I suppose Reed Richards is also a Doctor but apparently he just likes to be called "Mr. Fantastic" instead.

I suppose once you get your PhD you can choose any fancy title you want.