The conductor[1][2] is a fish who appears in the episodes "The Great Patty Caper," "My Leg!", and "BassWard."
Description
He is a violet fish with a black mustache. He wears his dark blue vest over his white dress shirt with red and yellow lines at the sleeves' edges with his red necktie. He also wears his dark blue conductor's hat with a gold label on the front.
Role in series
"The Great Patty Caper"
He appears when SpongeBob and Patrick board the Oceanic Express to retrieve the Krabby Patty secret formula in a bank at the other side of the ocean. He calls "All aboard!" just before the train departs.
"My Leg!"
After many failed attempts to break Fred's leg in order for him to see Nurse Daisy Bazooka, SpongeBob ties Fred's leg to a railroad track and plans to have a train run over his leg. The love train, which is being operated by the love train motorman, suddenly appears right on schedule.
Right before the train is about to hit Fred's leg, Tom suddenly appears and stops the train and then tosses it into the distance along with the motorman who was still inside the train.
"BassWard"
He appears on the train to Jetsam City. He asks Squidward and Bubble Bass to show their tickets, but when they do, the tickets fly out the window. The conductor then throws them out through the window. He reappears taking tickets for the trip back to Bikini Bottom, where he denies Squidward and Bubble Bass entry.