Eddie Guzelian, the producer of this show, wrote in his blog that the character of Jake's little sister was named after Hailie Jade Scott, Eminem's daughter. Eddie is a big Eminem fan and was listening to one of his albums while creating the character.
Grandpa's real name is Lao Chi. In Chinese, Lao Chi means "teacher."
In one of the original scripts of the series, Rose murders Sun (The Korean dragon) as a sign of loyalty towards the Hunsclan however it was written out as it was deemed too dark for Disney.
Just like Sam and Tucker in Danny Phantom (2004), Jake Long's friends Trixie and Spud would be in almost every episode of the series.
The voice of Susan Shi Long (The mother of Jake) was made by Lauren Tom, an actress known for lending her voice to another ethnic Chinese character Amy Wong of Futurama.