For the pickle voices, actors gargled water as they read their lines.
Terry Crews replaced Mr. T as the voice of Earl Devereaux from Tá Chovendo Hambúrguer (2009). Mr. T was asked to voice the character for the sequel, but declined. Many of Devereaux's body and facial expressions in the sequel were based on Crews' on-screen presence.
The animators also added an "Easter Egg" hidden fruit, which can be seen several times in the movie. Its name is Sasquash, and is shaped like a hairy gourd.
Sam Sparks' outfit when she returns to Swallow Falls is the same as Laura Dern's character in Jurassic Park: O Parque dos Dinossauros (1993).
Most of the features on Chester V's sentinels of safety are designs stolen from Flint Lockwood's inventions he made while working at Live Corp.