| Character | Name | Description |
|---|---|---|
|
Rainbow | The rectangular rainbow host of The Color Competition Series. They have some sense of failure when it comes to certain things. |
|
TV | The co-host who mainly hosts when it comes to eliminations. They are a monitor program who pretends to be a television. |
|
Grayscale | A mysterious figure who appears to be more of a background character than a staff member. |
|
Crayon Box | An assistant to Rainbow. Can mostly be considered a substitute host whenever Rainbow isn't around. |