Chloë Grace Moretz

as Nimona (voice)

Riz Ahmed

as Ballister Boldheart (voice)

Eugene Lee Yang

as Ambrosius Goldenloin (voice)

Frances Conroy

as The Director (voice)

Lorraine Toussaint

as Queen Valerin (voice)

Beck Bennett

as Sir Thoddeus Sureblade (voice)

RuPaul

as Nate Knight (voice)