Undersea Super Train: Marine Express

The plot of Marine Express can be described in two parts. The first part focuses on the people boarding the train and the problems they encounter on it. The second part takes place after the train has stopped at its half-way point, an island that used to be home to an ancient civilization millennia ago and has its fair share of secrets.

• 
  Kosei Tomita

  Shunsaku Ban (voice)
• 
  Mina Tominaga

  Pinoco (voice)
• 
  Koji Yada

  Skunk Kusai (voice)
• 
  Kenji Utsumi

  Acetylene Lamp (voice)
• 
  Mari Shimizu

  Astro Boy as "Adam" (voice)
• 
  Hisashi Katsuta

  Professor Ochanomizu as "Dr. Narzenkopf" (voice)
• 
  Mami Koyama

  Chocola as "Milly" (voice)
• 
  Chikao Ohtsuka

  Duke Red as "Director Credit" (voice)
• 
  Masashi Amenomori

  Boon Marukubi (voice)
• 
  Kaneta Kimotsuki

  Hosuke Sharaku (voice)