Cast[]
- Diesel as Horrid Henry (Diesel and Horrid Henry are both villians)
- Mavis as Perfect Peter
- Oliver as Brainy Brian
- Stanley as Anxious Andrew
- Rosie as Gorgeous Gurinder (Daisy can't be Gorgeous Gurinder, Daisy is bad, Gorgeous Gurinder is good)
- Emily as Prizzy Polly
- D261 as Soggy Sid
- Elizabeth as Rich Aunt Ruby
- Lillie Lightship (from TUGS) as Sour Susan
- Daisy as Moody Margaret (Not Rosie, Rosie is good, Moody Margaret is bad)
- Spencer as Beefy Bert
- Thomas as Aerobic Al
- S.C Scruffey as Rude Ralph
- Derek as Dizzy Dave
- Toby as Jolly Josh
- James as Tough Toby
- Donald/Douglas as Kind Kasim
- Sir Handel as Stuck Up Steve (Not Duck, Duck is kind, Steve is mean)
- Duck as Tidy Ted