Additional Voices (79 episodes, 2007-2008)
Ryuta Kodai (79 episodes, 2007-2008)
Cardinal Richelieu / Dr. Owen / Zander (7 episodes, 2007-2008)
Louis XIII / Seth (6 episodes, 2007-2008)
Copper / Dr. Z (6 episodes, 2007-2008)
Ieyasu Tokugawa / British Captain (5 episodes, 2008)
Princess Anne (4 episodes, 2008)
Sophia (4 episodes, 2008)
Dr. Ancient (4 episodes, 2008)
Genzo Sansho Hoshi (4 episodes, 2008)
Zoe Drake / Pterosaur (3 episodes, 2007-2008)
Aki Taylor / Max Taylor / Meena (3 episodes, 2007)
Rod (3 episodes, 2007)
Blackbeard (3 episodes, 2008)
Rex Owen (2 episodes, 2007)
Dr. Reece Drake / Laura / Ursula (2 episodes, 2007)
Helga (2 episodes, 2007)
Additional Voices (2 episodes, 2007)
Dr. Spike Taylor / Ed (2 episodes, 2007)
Nathan Peckham (1 episode, 2007)