Jebe is on the left and Frits is on the right.
Jebe and Frits are the main characters of Aurora Wager. Both characters are capable of jumping, picking up or dropping items although not the Huge Crate, installing items on mount points, and otherwise operating the balloon. If either Jebe or Frits falls into The Fog, the game will be over. The game is also lost if either character deserts the other. By default (as per version 4), both Jebe and Frits share control keys so one player can attempt to play them both. It should also be noted that having two people in the balloon at once does make the balloon heavier, and coordinated jumping may be required to take off from certain areas.
According to the developer, Jebe is the bearded fellow, while the one with goggles is Frits.