Trivia / Ben 10: Alien Swarm

• Dawson Casting: Most of the main cast were in their early/mid 20s while playing 16 year olds.
• Descended Creator: Director Alex Winter voices Ben's Nanomech form.
• The Other Darrin: Grandpa Max this time played by Barry Corbin. It's reported that Lee Majors was offered the role again but turned it down due to other commitments. Fans preferred Barry anyway as, unlike Majors, he actually looked the the part from the TV show.
  • Ben and Gwen are also played by different actors. This time Ryan Kelley and Galadriel Stineman play the two, unlike in Race Against Time where they were played by Graham Phillips and Haley Ramm.