The official Power Rangers Movie 2017 twitter page has recently updated with the reveal of the actor who will be playing Alpha 5 in the film. Bill Hader who is best known for being an alumni on Saturday Night Live will be playing Alpha 5 in the new Power Rangers film. Power Rangers 2017 will premiere on March 24, 2017.
— Power Rangers (@ThePowerRangers) September 22, 2016
Source: Power Rangers Movie Twitter