In this page, there has been a bunch of minor characters who was on the show, "Blue's Clues". These are characters who only appeared once or twice.
- Backyard Ball - A beach ball from Blue's Backyard Ballgame Bonanza
- Bob - Appears in The Wrong Shirt
- Boris - A bunny that lives in a pull tab book with his friend Sammy the squirrel in "What's Inside?" (not to be confused with Joe's duck)
- Brown Puppy - Only seen on a photo in The Baby's Here!
- Cash Register - Appears in Math! and Blue's Birthday
- Chalk Girl - Appears in Draw Along with Blue and Blue's Big Musical
- Chameleon - Appears in Prehistoric Blue
- Chris Crescent
- Crabs - They appear in Blue Wants to Play a Song Game
- Cybil Circle
- Diana Diamond
- Dr. Eyeleen - She is a robot doctor and only appears in Magenta Gets Glasses
- Dr. Stork - Appears in The Baby's Here!
- Girl and Puppy
- Gray Puppy - Only seen on a photo in The Baby's Here!
- Green Kangaroo - Appears in Shy
- Green Kitten
- Queen - She appears in The Alphabet Train
- Shape Boy - Appears in Art Appreciation
- Sifter - Appears in Shy
- Sleeping Beauty - Appears in What Was Blue's Dream About?
- Sock Puppet
- Spider - Appears in Blue Wants to Play a Song Game
- Steve's Grandmother - Appears in person in Blue's Big Treasure Hunt and in a quilt picture in Blue's Big Holiday
- Sun - Appears in What Experiment Does Blue Want to Try? and Blue's Big Pajama Party
- The Opposite Sisters - Appears in The Wrong Shirt
- Teddy Bear - Seen in What Story Does Blue Want to Play?
- Tink - Appears in What Does Blue Want to Build?
- Tink's Friend - Appears in What Does Blue Want to Build?
- You (seen in Art Appreciation)