Suggestions by @devin

Saara Chaudry

as Gorgeous Gurinder in Horrid Henry

Sophia Lillis

as Sour Susan in Horrid Henry

Brandon Severs

as Goody-Goody Gordon in Horrid Henry

Sunny Suljic

as Tidy Ted in Horrid Henry

Neel Sethi

as Jolly Josh in Horrid Henry

Jack Dylan Grazer

as Anxious Andrew in Horrid Henry

Aidan Gallagher

as Weepy William in Horrid Henry

Asher Angel

as Rude Ralph in Horrid Henry

Jack Dylan Grazer

as Rude Ralph in Horrid Henry

Caleb McLaughlin

as Brainy Brian in Horrid Henry

William Franklyn-Miller

as Aerobic Al in Horrid Henry

Gaten Matarazzo

as Beefy Bert in Horrid Henry

Jeremy Ray Taylor

as Greedy Graham in Horrid Henry

Nicole Kidman

as Rich-Aunt Ruby in Horrid Henry

Helen Mirren

as Great-Aunt Greta in Horrid Henry

Tress MacNeille

as Great-Aunt Greta in Horrid Henry

Noah Schnapp

as Stuck Up Steve in Horrid Henry

Diane Lane

as Miss Oddboard in Horrid Henry

Bill Hader

as Soggy Sid in Horrid Henry

Cate Blanchett

as Miss Battle Axe in Horrid Henry