Asa Butterfield as Ender Wiggin

Hailee Steinfeld as Petra Arkanian

Harrison Ford as Colonel Hyrum Graff

Viola Davis as Major Gwen Anderson

Ben Kingsley as Mazer Rackham

Abigail Breslin as Valentine Wiggin

Aramis Knight as Bean

Moisés Arias as Bonzo Madrid

Nonso Anozie as Sergeant Dap

Suraj Partha as Alai

Khylin Rhambo as Dink Meeker

Jimmy 'Jax' Pinchak as Peter Wiggin

Conor Carroll as Bernard

Tony Mirrcandani as Admiral Chjamrajnagar

Stevie Ray Dallimore as John Wiggin

Andrea Powell as Theresa Wiggin

Brandon Soo Hoo as Fly Molo

Han Soto as Lieutenant Soto

Kyle Clements as Young Mazer Rackham

Kelvin Harrison, Jr. as Salamander (uncredited)

Caleb J. Thaggard as Stilson

Cameron Gaskins as Slattery

Wendy Miklovic as Female Doctor

Jasmine Kaur as Professor

Edrick Browne as Eros Tech Officer Hendee

Christopher Coakley as Stilson Buddy #1

Chase Walker as Stilson Buddy #2

Gavin Hood as Giant