Plot: When Pig's last puzzle piece is missing, the Super Readers jump into an underwater mystery book.
Cast
Tajja IsenPrincess Pea (voice)Tajja Isen was 24 in Super Why! - Season 3 - The Underwater Lost Treasure (Episode 4).
Birthday: Sat, Jun 29 1991
Nicholas Castel VanderburghWhyatt/Super Why (voice)Nicholas Castel Vanderburgh was 20 in Super Why! - Season 3 - The Underwater Lost Treasure (Episode 4).
Birthday: Fri, Nov 18 1994
Siera FlorindoWonder Red (voice)Siera Florindo was 20 in Super Why! - Season 3 - The Underwater Lost Treasure (Episode 4).
Birthday: Mon, Sep 12 1994
Zachary BlochAlpha Pig (voice)Zachary Bloch was >> in Super Why! - Season 3 - The Underwater Lost Treasure (Episode 4).
Birthday: Unknown Birthday
Joanne VannicolaWoofster (voice)Joanne Vannicola was 47 in Super Why! - Season 3 - The Underwater Lost Treasure (Episode 4).
Birthday: Sat, Apr 20 1968