Be aware there are spoilers for The OA Season 2. Anyone who watched the wild, unpredictable first season of Brit Marling and Zal Batmanglij's hyper-bingeable Netflix series The OA knew to expect surprises in the second season. Boy did it deliver with robots, tree internet, and a telekinetic octopus, just to name a few. But the most welcome surprise of the new season is the addition of Kingsley Ben-Adir as a new co-load, Karim Washington, a private detective with a dark past who gets tangled up in OA's (Marling) world of interdimensional travel and metaphysical …