Wells Jaha is Clarke's former best friend and son of The Ark's Chancellor - a relationship for which he is despised by the rest of 'The 100'. He intentionally committed a crime when he found out about the imminent launch to join the expedition to Earth and try to protect Clarke, whom he harbors feelings for. Clarke believed that he caused the capture and death of her father and she resents him for this, though it was actually Clarke's own mother. Not long after making up with Clarke, he is killed by Charlotte.

Wells seems very strong but strict and wants the best for himself and others. His personality is similar to Chancellor Jaha who is his father. Always one to try and follow the rules Wells is someone who tries to use all the things they learned on The Ark on The Ground. Though many do not appreciate what he has to add to the group Wells always sticks up for what he believes in.

Loyal to a fault, in the past he has been known to try and protect others in any way that is possible. This point is proven when Clarke fines out that he took the blame for her father's death when in reality it was her mother's. He cared for her so much that he was willing to have her hate him rather than have her face the truth.

Over time he's seen as not only a rule follower, but also as someone who has the courage to go against the popular vote if he believes it's right. In the end that's who Wells is; someone who means well. Viewing the world in a very black and white sense, he tries to act in a sensible fashion.

Most of the time Wells can be predictable in his reactions-putting others first, following the rules, and trying to use what he knows to make sense of everything that's happening. He's the type to figure things out in a logical way. Some might call Wells humble, but he's definitely not one to belittle his accomplishments.