I wanted the second companion to be a warrior, a female who is uninterested in anything until a fight appears. When she is faced with a fight she turns into the most excited and hyperactive character, instantly switching back to her uninterested personality as soon as she has won. I wanted to ensure that the main character stood out from the rest of the personalities, I didn't want the companions to drown out the main character. Having stated this, I believe that the contrast of personalities work well together and the main character still stands out compared to the companions.
For the design of the companions, I have asked Anna Picariello to design these characters as well as a few background characters for the teaser trailer I want to make.