So all the functions of my driver door are not working, like the window buttons, the mirror controls, the lock and unlock buttons. The rest of my doors work fine, it's just the driver side. Any ideas on what it could be, and how to fix it? I am pretty sure it is not the actuator.

 

Could be a lot of things. I'd check for power to the door with a voltmeter, and look for corrosion or damaged wires/looms, bad grounding.