Dylan Minnette as Timmy Pickles
Cameron Monaghan as Chuckie Finster
Georgie Henley as Lillian "Lil" Deville
Dylan Sprayberry as Phillip "Phil" Deville
Laura Harrier as Susie Carmichael
Arden Cho as Kimiko "Kimi" Finster
Dakota Fanning as Angelica Pickles
Jaeden Lieberher as Dylan "Dil" Pickles