Who are these people?

Dr. Deus P. McFry: What is he? A mad scientist that work on the production of stunts of the movie "Back to the Future?"

Labian Justice: Is he supposed to be a comic book superhero. Probably he was judged too inadequate to be included in the Justice League, so he is venting his anger out on the world. Ha ha, Aqua Man probably kicked your ass!

Jack Spiv: Sounds like he is the combination of a wannabe journalist, and a pornstar.