Papa, whose full name is George White, is the father of the twin sisters Hello Kitty and Mimmy and the husband of Mama, also known as Mary White. He is a white cat who typically wears a blue collared shirt with a red tie, brown trousers, black eyeglasses, and brown shoes, and in older media he is often depicted with a smoking pipe. In some appearances he wears a dark green jumper with blue jeans. His birthday is June 3rd.

In terms of personality, Papa is kind, innocent, and good-humored. He enjoys making other people laugh and is known for his sense of humor, which gives him a warm and approachable presence within the family. He is also portrayed as reliable and hardworking, acting as a steady and dependable figure in the White household.

His main motivation is caring for his family and supporting his daughters in their daily lives. He works at a trading company and is the member of the family who drives the family car, taking on practical responsibilities that help keep the household running smoothly.

In the anime, Papa appears as a supporting family character. He participates in the everyday adventures of Hello Kitty and Mimmy, and his role is especially noticeable in family-centered episodes, such as the one that celebrates his birthday, in which his wife and daughters show their affection for him. His key relationships are with Mama, his wife, and with his two daughters, and he is shown to love his children deeply and to be devoted to them.

Because the series is episodic and aimed at young children, Papa does not undergo significant character development; he remains a consistent, loving, and dependable parent throughout the show. His notable abilities are not supernatural. Instead, they lie in his practical reliability, his gift for humor, and his capacity to keep his family both cheerful and secure.