Mr. Salt is the father figure of the Blue's Clues house. He lives in the kitchen with his wife Mrs. Pepper and his children, Paprika and Cinnamon. He speaks with a French accent and works as a chef. He is sometimes clumsy and often needs help from Steve or Joe after making a mess in the kitchen. His favorite food is toast with cheese, and cookies are his favorite thing to bake. Mr. Salt is Mailbox's best friend, and they like each other because their personalities are so different.
Aside from cooking, Mr. Salt's hobbies include dancing and tending to the garden outside of the Blue's Clues house. He and Mrs. Pepper are the oldest residents of the house; as seen in "Blue's First Holiday," they were adults while the others were all babies. It is assumed that he is one of the owners of the house.
Mr. Salt is an off-white color with a silver-colored cap. There are three black-colored holes on the top of his cap. He has a pink mouth and black eyes. His arms are short and black with three fingers on the ends of each one. In the series, he is made to look like he was created with construction paper cut-outs.
Mr. Salt appears in nearly every episode of Blue's Clues, counting the opening and credit sequences. He is only seen in the credits of the "Bugs!" episode. His first appearance was in the pilot episode, "Blue Prints." His last appearance in an episode of Blue's Clues was in the series finale, "Bluestock." He makes additional appearances in the Blue's Room episode "Meet Blue's Baby Brother" and in the "Behind the Clues" special.