Kenshiro (also known as The Man with Seven Scars) is the successor of a deadly martial art known as Hokuto Shinken.
He is a strong and stoic character with a strong sense of justice, helping out anyone in need and punishing evil-doers for their inhumane actions, and with a muscular build and the ability to kill his opponents by simply touching a pressure point on their body, Ken is a force to be reckoned with.
Though typically stonefaced against his opponents, Ken is a sensitive and kind-hearted man, who is often moved to tears by the pain inflicted on others, or even by the falling of a noble enemy.

Looking for something on the deep side, and am also a big fan of Kaiji Tang's take, but totally open to any interpretations.

Voice Reference: https://www.youtube.com/watch?v=uBHAyTaVACs