The clothes that Jonathan Jackson is wearing in his role as Kyle Reese are the same ones that Michael Biehn wore in The Terminator (1984).
This is the first episode since Strange Things Happen at the One Two Point (2008) to feature all eight members of the season 2 cast.
For the question John Henry wanted to ask God "why He didn't use more ball-and-socket joints when he made you", the simple answer is if human knees were having 270 degree ball-and-socket joint, instead of the current some 90 degree hinge joint, then, in case a person is standing on one leg, the ball-and-socket joint could slide by itself activated by gravity to make the person fall, or otherwise also, a ball-and-socket joint would have got broken supporting a weight of 60 kg or more of a person at some odd angle. So, it seems God's design is sensible.
Glock pistols do not have safety switches or levers. They have the unique "trigger safety".