Cumberland is a big container ship with special engines that he can use to dock himself without any need of a tugboat. At first, the other tugs considered Cumberland to be rude and stubborn, when in actuality he was sad because he missed his best friend Conrad Explorer. He soon became good friends with Theodore. Later on, when Emily got a new hat; he was the first to notice. And when Theodore, Foduck, Shelburne, Northumberland and George removed a satellite from his path. Cumberland was also the first ship Foduck brought in when he lost his memory.
- He apparently shares the same model as Colchester.
- His model was sold on eBay.
- Cumberland gets his name from Cumberland County, Nova Scotia, which is located in the province's northwest region.