Wednesdays are now burdened with glorious purpose.Marvel Studios returns to streaming screens next week with Loki, a six episode season following Tom Hiddleston's God of Mischief through a time-traveling adventure. But before we follow the MCU's resident trickster throughout history, we have quite a bit to catch up on.We walk through all the cast and characters, the director and writer's stacked resumes, the mysterious plot, and more. What is the Time Variance Authority? How will this show af...