If Grandma's cat Mr. Sprinkles sounds familiarly menacing, it may be because his voice is provided by Roger L. Jackson, the voice of the Ghostface Killer in the popular Scream movies.
Child actress Alex Jayne Go provides the voice for Little Bubble.
Radish Dad's full name is Radford Ishmael Daddington III.
Every time we enter Grandma's house or Lennon's hat, the characters turn into puppets.
Every time Gluko and Lennon are in Grandma's house, there is a new live action animal (or animals) hanging out.