Sorry brand X ?..door actuator issues

We have a 2005 Buick Lacrosse and the dang drivers door will not open sometimes. Can't open it from the inside,outside,or with the key. I am thinking it is the automatic door actuator that is the problem. Can I once I get the door open disconnet the wires for the actuator. Or maybe pull the fuse. Then would the door open and close manually? Or do I have to have the actuator working. This is why I hate newer cars......lol. Thank you,Jim