BW, you're right about Theodore reminding you of Thomas the Tank Engine.
Theodore is a Canadian character who now has books and an animated TV show in his likeness. He is modeled after the Thomas series, and is voiced in the TV show by the late, great Denny Doherty of the Mamas and the Papas.
Theodore even has his own gift shop on the pier!
Here's a link and some photos of Theodore and cruise ships in port: