Horrid Henry/Thomas

Fude Falph as Thomas
Brainy Brain as Edward
Anxious Andrew as Henry
Aerobic Al as Gordon
Stuck-Up Steve as James
Perfect Peter as Percy
Goody-Goody Gordon as Toby
Beefy Bert as Duck
Anchor & Chum (from Finding Nemo) as Donald & Douglas
Tidy Ted as Oliver
Horrid Henry as Diesel
Buzz & Delete (from Cyberchase) as Bill & Ben
Lifty & Shifty (from HTF) as Arry & Bert
Hacker (from Cyberchase) as Diesel 10
Spike & Whitey (from Flushed Away) as Splatter & Dodge