Bernie the Steam Engine is a toon train who works for the Tokusouldiers as their primary mode of transportation. He is also an honorary Tokusouldier known by his codename, The TokusouLiner. He is inspired by Casey Junior from the 1941 Disney Movie, Dumbo and is also that character's son.
Bernie is loyal, sapient, gruff, out-spoken, and funny. His loyalty makes him the Tokusouldiers' most trusted ally. He is so trusted, he even serves as an honorary Tokusouldier and their primary mode of transportation. While he's traveling, he likes to play the rhythm of his father's song. Like all toons, he fears the dip.