Dacre Montgomery has been cast as the Red Ranger in the 2017 Power Rangers reboot according to @powerrangersthemovie on Instagram. Power Force were contacted by Saban Brands a half hour ago to watch out for the Instagram account so there you go. He was in two small things: Family Tree Pilot Trailer (TV Movie) in 2011 and Betrand the Terrible (Short) in 2010. Check out his IMDB gallery for more pictures.
Ludi Lin has been cast as the Black Ranger, announced on 10/22. He voiced Wind Magician in Monster Hunt (2015), Clayton in Holiday Spin and in shorts like The Intruders and The Shannon Entropy.
RJ Cyler (Me and Earl and the Dying Girl, Second Chance, Vice Principals and War Machine) has been cast as the Blue Ranger.
We already got the Pink Ranger cast below, one more to go!