Dr. Patrus Pravus is one of the members of the Crimson Alliance. Obviously, he is the head of the scientists working for the Crimson Empire. He is first encountered in the mission "Crossing the Rubicon".
When the player first gets to Liberty, Dr. Pravus notices all too soon and orders all forces to attack.
- He resembles Dr. Emmett Brown from Back to the Future trilogy, but he has a robotic eye on the right of his face.
- His hair style is based on Heihachi Mishima from Tekken series.
- Apparently, he is very affectionate to his devices to the point where he has actually given them names.
- According to Black Fox, he was a sub-atomic physicist who disappeared 5 years ago.