Lithuania is the personification of Lithuania. His other name is Tolys Laurinaitis. He is 19 years old. Lithuania is a man of average height with wavy, shoulder-length brown hair and green eyes. He is the tallest of the Baltics, being nearly on par with Estonia. Lithuania is shown to have deep scars covering his back. Although it has never been confirmed how and when exactly he got them, fans largely speculate that Russia is the culprit. He is introverted, serious and perseverant, but is also described as an overthinker. Those traits make him prone to stress, which in turn triggers his stomachaches. but he shows patience and resilience even in the face of hardships. He is also very aware of his condition as a personification and what that entails of which he clearly thinks the disadvantages outweigh the advantages He also has an unrequited crush on Belarus. He is the eldest of the baltics. His brothers are Estonia and Latvia.

Estonia is the personification of Estonia, He is 17 years old. His other name is Eduard von Bock. Estonia has dark blond hair styled in a bowlcut, and greenish-blue eyes He also wears thin rectangular glasses. is considered the luckiest of the three, having managed to avoid problems with his wit. He is skilled at information technology. However, he tends to work at his own pace and doesn't pay much attention to his surroundings so he often goes unnoticed by others, Estonia plays the piano and says his singing voice is considered to be "revolutionary." He also runs his own blog. He really wants to become a nordic. He is the middle child, His brothers are Lithuania and Latvia.

Latvia is the personification of Latvia. He is 15 years old. His other name is Raivis Galante. Latvia has short, curly dirty-blond hair and blue eyes. He is the shortest of the Baltic trio. According to himself, his size is partially the result of Russia regularly pushing down on his head. He is often pushed around by Russia He will often fail to read to the atmosphere and say or do what is prohibited, and then has to face harsh consequences. He is the youngest out of the 3 Baltics, his brothers are Lithuania and Estonia.

Belarus is the personification of Belarus. Her human name is Natalya Arlovskaya, she is 19 years old. Belarus has waist-length, straight platinum blonde hair with bangs parted in the middle, and indigo eyes. Belarus is an intimidating and harsh young woman who can be very hostile and violent at times, exhibiting some mental instability. She is a yandere, specifically for Russia. She is very obsessive about Russia and wants to marry him..She is the youngest out of the 3 Slavic siblings, her siblings are Ukraine and Russia. She often carries a knife around and tries to break into Russia’s room at nights.

Russia is the personification of Russia, his other name is Ivan Braginsky. He is 22 years old. Russia wears a long, heavy tan coat, dark green pants, brown gloves, and a long tan scarf Though he is capable of being incredibly cruel-minded, Russia himself is unaware of it. Whenever he thinks of either of his sisters, he becomes very depressed and sometimes worries that he is not as well liked as he believes. He is abusive, especially towards the Baltics and believes he can get whatever he wants. He is the middle child and his sisters are Ukraine and Belarus. He is also very tall and is a bit chubby. He is not scared of anything except Belarus.

Ukraine is the personification of Ukraine. Her human name is Iryna Chernenko. She is 23 years old and the oldest of the Slavic siblings. Ukraine has light blue eyes and short blonde hair, which she keeps held back with a white headband and a blue or yellow hair clip. Her most notable physical feature, however, is her large breast size. Ukraine is the oldest of the three siblings and is constantly getting dragged into some sort of mess. She is described by her brother as being very warm-hearted and motherly. Russia also notes that she is a bit of a cry-baby and her heart is too big, making her an easy target. Her siblings are Russia and Belarus.