Martin is the older brother of Chris Kratt. He works along side his brother to discover more about the amazing creatures of the animal kingdom and to save them from danger. He is 4 years older than Chris.
Martin has dirty blonde hair and blue eyes. He is much taller than Chris and has a blue power suit. He wears a blue sweater with khaki's.
Martin the well being of animals seriously but can be a real goof on the job. Though he is the older brother, he is more impulsive and quicker to jump in action. He enjoys naming the creatures he and his brother find.