Sparky

Sparky is a pet puppy dog owned by Austin, Victor, and Jordan. He is the only pet to be a part of the gang. Sparky doesn't speak, but he only barks.

Throughout the Backyardigans 2.0 series, he would make sporadic appearances.

Normal

 * Frozen Brotherhood
 * The Royal Games
 * The Temple of Gloom
 * Party At Sea
 * The Old Switcheroo
 * The Blind Dragon
 * On The Right Track
 * Your Majesties, We Shrunk Ourselves
 * Trouble in the Triangle

Crown

 * King Austin and the Knights of the Round Table
 * The Horse Kings
 * Upton Abbey
 * A Royal Merry Christmas
 * Doggy Doctors
 * The Royal-pocalypse
 * Rock Your Style
 * The Great Dragon Race
 * The Royal Puppies
 * The New Knight's Quest
 * Adventures in Dragon-Sitting
 * The Super Puppy Bowl

Cowboy Hat

 * Where the Wild Horses Are

Bowtie and Top Hat

 * A Christmas Mystery
 * The Royal Magicians

Newsboy Cap

 * Super Royals to the Rescue

Police Hat

 * Tricera-Cops
 * B.Y.P.D. Blue

Space Suit

 * Galaxy Under Siege

Tricorn Hat, Jabot, and Cuffs

 * The Treasure of the Seven Seas