Cranky is a dockside tower crane that works on Edward's Branchline.
Cranky was built by an unknown company in 1956 to work at around the harbours and docks on mainland but one day the Fat Controller needed a crane to help out at Brendam docks so he bought Cranky and on his first day he started to cause trouble for Thomas and Percy by causing delays and mix ups but when a storm arrived that night and a tramp steamer smashed into him he never caused trouble again.
He later complained about how smelly the fish was when Emily had to take the Flying Kipper.
Cranky is a grumpy and bossy crane that can easily get annoyed by little engines if they are being cheeky to him. despite this Cranky has soft spot and comfort the other engines if they feel sad.