Fan Casting MyCast: ~A Visitor from The Sky~

In a distant future, an alien from a distant galaxy, arrives on earth with a dire warning: an impending invasion by a frightening mysterious alien creatures known as "The Beasts", but the government ignored his warnings and instead arrested him. Months later, sightings of unknown organisms were coming in from all over New York State. At first, the US government treated these alarming events as acts of terror involving some kind of biological or chemical weapon. During winter, mysterious bloodthirsty aliens began abducting and killing innocent civilians. Once the government acknowledged the existence of these human-eating creatures, they establish a secret task force dedicated to stopping the strange organisms called the E.T.I (Extra Terrestrial Investigation Team). In the midst of the panic, another alien came to earth after the previous alien sent a distress signal. After knowing about the situations, the alien volunteers his efforts and special abilities to help in the battle against the Beasts. However, the alien sees a vision from the future where The Beasts were planning to terraform earth. (Complete synopsis in the comments).