Balthazar Horowitz

Balthazar Horowitz is a recurring background character on Phineas and Ferb. He is a young boy with dark-blond hair who is often seen making cameos in crowd shots, first appearing in "Toy to the World". He has also occasionally taken part in Phineas and Ferb's big ideas. His most notable role was in the episode "I Was a Middle Aged Robot", in which he twice sees Perry the Platypus, in his secret agent persona, coming out the Lawrence Fletcher robot's rear end. At the end of the episode, he comes upon Perry in his pet persona and notices that he looks familiar.

Prior to 2013, Balthazar was known primarily as the Ballpit Kid by fans. This is due to a scene in the episode "No More Bunny Business", in which, during the "X-Ray Eyes" song sequence, Phineas and Ferb use their x-ray specs to find and retrieve Balthazar out of a ball pit that he got lost in. Balthazar's real name was eventually confirmed during season 4, with it being spoken onscreen in the episode "Backyard Hodge Podge". Notably, in "Troy Story", he officially states that "Ballpit Kid" is his nickname.

Appearances

 * "Toy to the World"
 * "Bowl-R-Ama Drama"
 * "Put That Putter Away"
 * "Out of Toon"
 * "Interview With a Platypus"
 * "Oh, There You Are, Perry"
 * "No More Bunny Business"
 * "Fireside Girl Jamboree"
 * "Finding Mary McGuffin"
 * "Just Passing Through"
 * "I Was a Middle-Aged Robot"
 * "The Lizard Whisperer"
 * "Summer Belongs to You!"
 * "Run, Candace, Run"
 * "Phineas' Birthday Clip-O-Rama!"
 * "The Belly of the Beast"
 * "Magic Carpet Ride"
 * "Meatloaf Surprise"
 * "A Real Boy"
 * Phineas and Ferb The Movie: Across the 2nd Dimension
 * "Quietest Day Ever"
 * "Backyard Hodge Podge"
 * "Great Balls Of Water"
 * "Knot My Problem"
 * "Happy Birthday, Isabella"
 * "Love at First Byte"
 * "Troy Story"