Honir has been severly tortured,because of that his face and body are deformed,so he uses a helmet,without it he cannot breath he feels pain constantly,he usually doesn´t fight but he is very smart and perceptive, his voice sound modulated due to using the helmet,so he should sound like Adam Jensen or Geralt from the Witcher 3,like he is constantly tired and and getting up and talking is a huge effort,he want to kill himself all time,but his hate motivates him to stay alive