Reiner has a large, imposing physique thanks to his naturally muscular build and tall stature. He has short blond hair and golden eyes with a goatee on his chin. He is depressed and has a personality disorder. Otherwise, he's possessive, impulsive, courageous, strong but kind-hearted. Reiner only cares about his wife. She's his only reason. Reiner is a Marleyan warrior and owns the armored titan. Reiner is 1.88 metres tall and weighs 98 kg.