Dora the Explorer: Dora's Number Party

Cast

 * Dora
 * Diego
 * The Backyardigans
 * The Wonder Pets
 * Steve & Blue
 * Kai-Lan
 * Wubbzy
 * Sportacus
 * Stephanie
 * Miss Spider
 * Holley
 * Squirt
 * Bounce
 * Dragon
 * Shimmer
 * Oswald
 * DJ Lance
 * Muno
 * Foofa
 * Brobee
 * Toodee
 * Plex
 * The Fresh Beat Band
 * Dan Henderson
 * Max & Ruby
 * The Team Umizoomi
 * The Bubble Guppies
 * Jack
 * Mary
 * Mel
 * Oobi
 * Little Bill
 * Little Bear
 * Maggie
 * Beast
 * Hamilton
 * Franklin
 * Maisy
 * Kipper
 * Bob the Builder
 * Binyah Binyah
 * The Curious Buddies
 * Shane and David
 * The Paw Patrol
 * Shimmer and Shine
 * Olivia
 * Peppa Pig
 * Henry
 * Dash
 * Dot
 * Big Bird
 * Elmo
 * Zoe
 * Grover
 * Rosita
 * Abby Cadabby
 * Bert
 * Ernie
 * Count Von Count
 * Oscar the Grouch
 * Tinky-Winky
 * Dipsy
 * Laa-Laa
 * Po
 * Humbah
 * Zumbah
 * Zing Zing Zingbah
 * Jumbah
 * Jingbah
 * Caillou
 * Arthur
 * Super Why
 * Alpha Pig
 * Wonder Red
 * Princess Presto
 * Woofster
 * Curious George
 * Barney
 * BJ
 * Baby Bop
 * Riff
 * Theo
 * Cleo
 * Lionel
 * Leona
 * Dog
 * Frog
 * Bear
 * Sheep
 * Pig
 * Ant
 * Duck
 * Bug
 * Fly
 * Bee
 * Sid
 * Snook
 * Clifford
 * T-Bone
 * Cleo
 * Mac
 * Daniel
 * Zoboomafoo
 * Jackie
 * Inez
 * Matt
 * Digit
 * Jay-Jay
 * George Shrinks
 * Max
 * Enrique
 * Emmy
 * Ord
 * Cassie
 * Zak and Wheeize
 * Quetzal
 * Max
 * Mama Mirabelle
 * Karla
 * Bo
 * Papa Bear
 * The Cat In The Hat

Summary
Dora, Diego, The Nick Jr. Characters and The PBS Kids Characters are Having a Number Party.

Clues

 * 1) A Zero
 * 2) A One
 * 3) Another Zero

Answer to Blue's Clues

 * One Hundred