Ralph appears to be an older member of the Military Police Brigade's First Interior Squad. He has short, light-colored hair with a goatee and notable wrinkles.
Like most Military Police, Ralph looked down upon those from the Survey Corps; laughing to himself as his companion, Djel Sannes, blatantly insulted them for their efforts. However, in contrast to his companion, Ralph may not be as devoted to the king and keeping the security of the Walls, as he ended up going along with the Survey Corps' plans in compensation for his own life, ultimately betraying the secrets of his companions and organization. As a part of the First Interior Squad, his job was to dispose of people viewed as threats, such as brutally assisting with the murder of Minister Nick. A younger Ralph is once seen seemingly encouraging Sannes to go through with torturing a teacher, showing that he is capable of quite a degree of cruelty as well.
After receiving word that Minister Nick from the Church of the Walls has divulged valuable secrets to the Survey Corps, Ralph and Sannes are ordered to find out how much he told. Visiting the man, Ralph savagely beats and tortures Nick. Despite his best efforts; however, Nick refuses to talk and eventually dies without saying anything.
Appearance: Ralph appears to be an older member of the Military Police Brigade's First Interior Squad. He has short, light-colored hair with a goatee and notable wrinkles.
Personality: Like most Military Police, Ralph looked down upon those from the Survey Corps; laughing to himself as his companion, Djel Sannes, blatantly insulted them for their efforts. However, in contrast to his companion, Ralph may not be as devoted to the king and keeping the security of the Walls, as he ended up going along with the Survey Corps' plans in compensation for his own life, ultimately betraying the secrets of his companions and organization.
Ralph in the story: After receiving word that Minister Nick from the Church of the Walls has divulged valuable secrets to the Survey Corps, Ralph and Sannes are ordered to find out how much he told. Visiting the man, Ralph savagely beats and tortures Nick. Despite his best efforts; however, Nick refuses to talk and eventually dies without saying anything.
Relationships: Djel Sannes - Ralph's companion and friend, the pair were always seen together and appeared to be close prior to being captured by Hange and Levi. While a hostage, he ends up insulting him, claiming to not care about his injured condition and asking for him to be killed, however that was possibly never Ralph's true feelings, as he was being forced to read from a script.
Source: Attack on Titan Wiki, available under CC BY-SA 3.0.