Well, a whole lot of the things im posting are confirmed. This is the voice actors and what shows their from. The photo above, again, is just random. art credit Tamaytka on tumbler.
•Princess Allura - Kimberly Brooks (Ben 10: Omniverse, Justice League: War, Steven Universe)
•Coran - Rhys Darby (What We Do in the Shadows, Flight of the Concords)
•Shiro, Black Lion - Josh Keaton (Green Lantern: The Animated Series, Transformers Prime)
•Hunk, Yellow Lion - Tyler Labine (Reaper, Tucker & Dale vs. Evil)
•Lance, Blue Lion - Jeremy Shada (Finn in Adventure Time, Batman: The Brave and the Bold)
•Pidge, Green Lion - Bex Taylor-Klaus (Arrow, Scream: The Series, iZombie)
•Keith, Red Lion - Steven Yeun (The Walking Dead, The Legend of Korra)
Link: http://collider.com/voltron-legendary-defender-season-2-netflix/