Blue's Clues is an American children's television series airing on the Nickelodeon family of channels. The series takes place inside a world in which everything is made of paper cutouts, clay, and other craft materials. It is presented by a live-action human host who lives in a yellow house inhabited by anthropomorphic everyday objects.
Steve Burns hosted the series from its debut in 1996 until 2002, when the part was taken over by Donovan Patton. The program features an ensemble cast of animated characters who interact with the host. Co-creator Traci Paige Johnson voices the title character, an animated, blue-spotted dog named Blue who communicates through distinctive barks. The series composers Michael Rubin and Nick Balaban voiced Mailbox and Mr. Salt, respectively.
In addition to the main characters, the show included various newly introduced recurring characters and guest stars throughout its run. Some guests appeared as live-action companions of the host, while others voiced an animated cameo role. When a spin-off series titled Blue's Room premiered in 2004, a group of puppet characters was introduced as new friends of Blue. A reboot titled Blue's Clues & You! premiered in 2019, with Josh Dela Cruz as the new host.