The Ketcham family is a fictional family featured in the popular animated television series, Hey Arnold!. The show, created by Craig Bartlett, follows the adventures of a young boy named Arnold and his friends in a city inspired by New York City. The Ketcham family includes Gerald Johanssen, who is one of Arnold's best friends and a key character in the series. In the show, the Ketcham family is depicted as a close-knit group, with a focus on friendship and community. The series explores various themes, including childhood experiences, family dynamics, and the importance of supporting one another. The Ketcham family contributes to the rich tapestry of characters that make Hey Arnold! a beloved classic.