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An alien ends up coming to earth to make friends with humans instead of his own colony. 
By Sony animation
Riley the alien: Ansel Elgort
Hope smith the girl with promise: Shailiene Woodley
Captain Zon: Channing Tatum
Phil a friend of Riley: Kevin Hart
Mr smith: Will Ferrell
Ms smith: Zoe Saldana
Serena Rileys love interest: Elizabeth Olsen
Lauren hopes sister: Karen Gillan
Alien invader leader doomsday: Paul Rudd 
Doomsdays assistant: Aaron Taylor Johnson
Police officer West: Ice cube
Doomsday's drones: Frank Welker
Additional voices for aliens
Tara Strong
Eric Bauza
Dee Bradley baker
Jim Cummings
Carlos Alazaquiz
Nicholas Guest
Scott Menville
Corey Burton