Reiner's father

Reiner's father is a Marleyan man who had an illegal relationship with the Eldian woman Karina Braun. He is the estranged father of Reiner Braun.

Personality
He is shown to be a desperate and fearful man since he disowns his own son out of fear of getting decapitation from the Marley for having illegal relationship with an Eldian.

History
He met an Eldian woman Karina Braun while working the barracks. Even though it was forbidden, they had a secret relationship. Some time later, Karina gave birth to their son Reiner.

He eventually abandoned his lover and his little son for his own safety. He was also afraid of safety of his Marleyan family members since the consequences of his action - illegal relationship, would result in cruel punishment for him and his family.