Jonathan Murphy

My favorite character from the 100 is Jonathan Murphy. He is portrayed by Richard Harmon and become a major character in season 3. He was sent to the earth as a delinquent and a criminal from the 100 because of setting a police department on fire. We can see them he can be ally or come against the 100.

John's sarcastic side

He actually had a rough past. His father executed because of trying to get medicine when John was ill. His mother later blamed him for his father's dad and started drinking. The last words that she stated was he killed his own father.
John is first shown to be strong and aggressive person who loves to be in a fight in the first season.  He knows how to survive in the earth and determined. He has a sarcastic personality too. On the other hand, he has a kind side. He doesn't want to be alone.  He cared deeply for the delinquents however, didn't got respect or love by any of them.

Hurt and scared John Murphy

In season 2, his personality changed in a good way. He actively works, protect his 'allies' and contributes. Despite of his change, he couldn't fit with Ark survivors so he went with Jaha to find City of Light. He even started to recognize what is good and bad.

I believe that John Murphy is an underrated character and needs to be appreciated by the survivors of Ark. He acts like nothing matters to him and if something changed he won't be affected by it. To be honest, I believe that this behaviors shielding what he feels. He wants to feel loved, appreciated and trusted. He didn't have a good childhood and he come this way with very hard circumstances. He is strong and brilliant. He has an important role in survival. That's why I believe that Jonathan Murphy is one of the best characters that CW has ever been created and needs to find his own happiness.