River is the older son of Aerrow and Piper. He has midnight blue fur and orange and green mixed eyes. Like his younger brother Skylar, River fights using an energy sword powered by a blue striker crystal.

River is shown to be on of the "funny men" of the squad, River is always there to make a joke, often at the expense of others. He is not always taken seriously, and is easily sidetracked by beautiful girls. Despite this, he is incredibly loyal to his fellow teammates and will always be there for them. Though River is amongst the best shots in the team, he is impulsive, reckless and is almost the first one to get into trouble, often dragging his friends along with him. Despite this, he thinks very highly of himself, evidently borderline egotistical. His said ego is large enough that he refuses to accept that he lacks talent in most things, despite public and professional opinion stating otherwise. River has shown to be rather lazy in regards to doing his share of the chores around the base, often dumping them on his friends or ignoring them altogether, which often aggravates his teammates to no end. It often takes a direct order from Aasira or Pramesh to get him to do his chores.

River does show respect and a willingness to protect Aasira as shown climbing up a steep rocky cliff and digging his claws into Kain's leg to rescue Aasira.

River and Pram share a close relationship.

He also likes to tease his other teammates.

Trivia:

River's name is possibly a reference to river.

River has had the most Disney musical numbers out of all the characters in the show.

He's also the only Exosian child to have colored scleras.