Matthias De Haas

Matthias De Haas is a recurring character in the Kate series. He is Matthew's Belgian doppelganger who is super smart, like his girlfriend Katrina. He is also great at math and science.

Appearance
Matthias is a teenage boy with fair skin, brunette hair and blue eyes. He also wears glasses. His attire consists of an electric purple turtleneck, purple pants and brown shoes with white soles.

Personality
Matthias is the most intelligent out of Matthew's doppelgangers, just as Katrina is the most intelligent out of Kate's doppelgangers. He is really advanced when it comes to his academics.

Katrina
Katrina is Matthias' girlfriend. They are an intelligent couple and could be known as the "smartest pairing of Teen Titan". They are also both from Belgium.

Matthew
Matthew is Matthias' best friend, just as Kate is Katrina's best friend. They love to talk with each other and have a chat about how the eleven girls would be the best heroes in the world.

Trivia

 * Matthias is so similar to Jeanette from the Alvin and the Chipmunks franchise, they both:
 * Are brunettes
 * Wear glasses
 * Wear purple as their main colour
 * Are super smart