Iron Bert, along with his twin brother Iron 'Arry, is a diesel engine that works down in the scrap yards and smelters sheds. Iron Bert loves breaking up old steam engines, and would really like to melt down Stepney and Oliver if given the chance.
Fun Fact!
Iron Bert has more stubble than his brother Iron 'Arry. Iron Bert is based on a British Rail Class 08 Diesel-Electric Shunter.