Thomas & Friends: All Engines Go
Harold (voiced by Bruce Dow in the US and by Jai Armstrong in the UK) is always on-hand and ready to help and rescue others who are in trouble or danger. He even utters phrases typically used by pilots, such as "Over!" and "Roger that!". But sometimes, he cannot perform his rescues alone, so he will often resort to asking others for help if he needs it.  Harold's personality is mostly the same as his personality from the original series, however, he no longer teases the engines about how railways are outdated.