Thomas is a 14-year-old boy genius who graduated from the Stockholm Royal University of Science at the age of 13. His abilities are considered elite, even within DATS. He bases his operations on data and theoretical principles, and as such his personality clashes with Marcus's. His mother is Japanese and his father is a prominent Austrian aristocrat named Franz Norstein. Franz and Thomas' mother met while she was an exchange student in Austria, and Thomas lived with his mother in Japan until she died. He was taken back to Austria. He also has a younger half sister, Relena, who suffers from a strange disease. It is never shown who Relena's mother is, but she died of complications during childbirth. While Thomas does not particularly care for his cold father (at least not until after the events of episode 42), he does love his sister very much and does whatever he can to protect her.

Calm and shrewd, he is the exact opposite of Marcus and sees him as a rival. He has an elitist attitude but he gets emotional when thinking of his mother, who died years ago when she was hit by a speeding truck while on their way to a festival when he was young. Thomas's loyal partner is Gaomon, who always addresses him as "sir" and gets angry easily when he thinks someone is not treating Thomas with the proper respect. It has still yet to be revealed how the two actually met.


HP Health Point 100
DS Digi -Soul 80
DE Defense 2
AT Attack 10


  • Plan A: Boosts the Tamer speed stat by 50 % for 15 seconds.
  • Cooldown: 5 minutes.

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